The skin completes most of the functions in this system. Mammalian skin has 3 main layers called the epidermis, dermis, and hypodermis (subcutaneous tissue). It is estimated that an adult human has about 35 billion skin with many dying an being replaced every day. The exact mechanism of action for thermoreceptors is not well understood, but it is thought it has something to do with certain proteins regulating the flow of ions across the cell membrane. The main function of this system is to act as a barrier to protect the body from the outside world. It is made of two dermal layers. This website uses cookies to improve your experience while you navigate through the website. Integumentary system organ functions. It also protects the body from diseases, eliminate waste, retain body fluids and regulate body temperature. The epidermis is almost entirely composed of special cells called keratinocytes. Protects the body's internal living tissues and organs 2. The glands present in the skin are sweat glands and sebaceous glands. - skin is the largest organ in the body. Choose from 500 different sets of functions organ system integumentary flashcards on Quizlet. Protection 2. Well, we're looking for good writers who want to spread the word. The integumentary system consists of the skin, hair, nails, the subcutaneous tissue below the skin, and assorted glands. The integumentary system is the external covering of our body which includes skin, hair, nails and sweat glands. One of the defining characters of all mammals, hair is formed in the hair follicles found all over the skin. (marieb, elaine, hoehn, katja, 2010) Figure 1 .A section of skin with various accessory organs. Authors. The integumentary system helps regulate body temperature through its tight association with the sympathetic nervous system, the division of the nervous system involved in our fight-or-flight responses. The skin is the main organ of the integumentary system. The dermis is the inner layer of the skin connected to the epidermis by the basement membrane. Integumentary System Major Functions: - Protects the body's internal living tissues and organs - Protects against invasion by infectious organisms - Protects body from dehydration - Protects body against abrupt changes in temperature - Helps dispose of waste materials - Acts as receptor for touch, pressure, pain, heat, and cold - Stores water and fat. Preventive barrier against water loss 4. Elephants, for example, are known for having an extremely thick and durable skin, along with tusks and tough nails on their feet. The skin has three layers called the epidermis, dermis, and hypodermis. Skin. They aid birds in flight, and also provide insulation, water proofing, and camouflage. Production of vitamin D. protective function. Muscular system: movement with muscles. Nail. Integrated into the keratinocytes are melanocytes, cells that produce the melanin that gives skin its color. In this section, you … For humans, the epidermis has an average thickness of about 0.1 mm, being thicker on the palms and soles of the feet. The sympathetic nervous system is continuously monitoring body temperature and initiating appropriate motor responses. Cover the organs in this area 3. integumentary system function 3 . We love feedback :-) and want your input on how to make Science Trends even better. Acts as a receptor for touch, pressure, pain, heat, and cold 7. Some mammals have thick, dense coverings of hair called fur. It also protects the body from diseases, eliminate waste, retain body fluids and regulate body temperature. Discuss the function(s) of your system and include the roles that the organs of the system play in that function. Scales are rigid plate-like structures that cover the body of fish, reptiles, and arthropods. The main functions of the skin is to provide protection to the body and organ systems. integumentary system function 2. it also performs several vital functions besides protecting you from an invasion of disease producing pathogens. Protects body from small injuries, infection, and UV rays. The following accessory organs (skin derivatives) are embedded in the skin: Hairs are elongated filaments of keratinized epithelial cells that arise and emerge from the skin of mammals. In addition to the skin, most vertebrates have accompanying structures that help protect the organism from danger, sense the environment, and stay warm. All mammals have some hair on their skin, even if it may be difficult to see with the naked eye. The main function of the integumentary system is to provide a protective covering for the body. Copyright © Bodytomy & Buzzle.com, Inc. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. The skin is only a few millimeters thick yet is by far the largest organ in the body. Attached to each hair follicle are the arrector pili, tiny muscles that cause the hair to stand on end. This anatomical structure is called an organ. Together these organs form the integumentary system. Some people choose to embellish … Functions of the Integumentary system 1. protection a) chemical factors in the skin: Sebum (or oil) from the sebaceous glands is slightly acidic, retarding bacterial colonization on the skin surface. Skeletal System: Anatomy (main organs): bones, cartilage, ligaments Physiology (main function): protects organs, provides shape and support, stores materials, produces blood cells. It is mandatory to procure user consent prior to running these cookies on your website. These are all exocrine glands, secreting materials outside the cells and body. In contrast, amphibians tend to have very thin and relatively delicate skin, as they have to absorb water through their skin. Chapter 4 Skin and Body Membranes Body Membranes Functions of body membranes Cover body Many fish scales also secrete a substance that prevents the growth of algae and other microorganisms. Integumentary System Organs. Chemical Skin, which is the largest organ of the body is the main organ of the integumentary system as well. In fact nails are a hard layer of keratinized cells which develop from the epidermis. The integumentary system functions are varied but overall it provides a barrier that protects our body from infection. Other than that, the integumentary system organs work together to provide insulation and help in excreting waste from the body. The integumentary system helps regulate body temperature through its tight association with the sympathetic nervous system, the division of the nervous system involved in our fight-or-flight responses. The integumentary system functions are varied but overall it provides a barrier that protects our body from infection. I know we've only covered two out of the four types of tissue, but that will be enough to start looking at some of the systems of the human body. The integumentary system is made up of the skin, hair, nails, nerves, and glands. Skeletal system. The integumentary system helps regulate body temperature through its tight association with the sympathetic nervous system, the division of the nervous system involved in our fight-or-flight responses. Most reptiles go through periodic stages where they will shed their outer-most layer of scales and grow new ones. Dr Isabel Imboden. Define integumentary system: made up of the skin and its accessory organs-hair, nails, gland I. Broadly speaking, the integumentary system is composed of skin and its appendages, subcutaneous tissue, deep fascia, mucocutaneous junctions, and breasts. In most land vertebrates, the skin is 100% waterproof and also protects against UV radiation from the sun. Integumentary System Functions. 50% of the hypodermis is fat which provides padding and insulation for the body. This Bodytomy post has more information. The innermost layer is the medulla which is made up of loose cells and air spaces. Want more Science Trends? (1-2 paragraphs) Some systems are organ heavy, some aren’t – please see me if you have a question about the depth of information for this section for your system.Correlate Structure and Function (3-6 paragraphs) A. It protects our deeper tissues and organs from infections by fighting harmful bacteria & germs. Feathers are excellent insulators of heat and cold, which is why humans use them for things like coats, pillows, and blankets. Hair, specifically its location and coloring, has also evolved to play a role in sexual selection in many species. The function that is shared by the immune and integumentary system is protection. Body Defense Detox: Sleep Deprivation And The Immune System In Twins, Individual Irrationality, Network Structure, And Collective Intelligence, Tailoring Tomatoes To Match Individual Consumer Needs, Printed Transistors Pushed To New Operational Limits, Does Awareness Of Environmental Problems Guarantee Environmental Actions? The integumentary system consists of the skin, hair, nails, glands, and nerves. Just like any other organ system in your body, the integumentary system does accomplish certain functions of vital importance. […], The past decade has seen a rapid increase in the growth of wind energy in the United States. Toxic wastes are excreted by the skin in the form of perspiration. All the smaller and larger parts, including skin, hair, nails, glands and nerves, have their own particular jobs, thus ensuring the survival and the maintenance of perfect health of the individual. On the dorsal surface of the distal end of the finger or toe, there is a hard … Stores water an… Protective barrier against entry of pathogens, parasites, and predators. Stores important elements – The Integumentary system also stores different essential elements like fats, water, vitamin D, and glucose. 3. It does this by sweating if you get hot so when the sweat dries, the skin cools down. Feathers are a complex intergumentary organ and aid in flight, thermal regulation, and protection from water. The integumentary system forms a protective barrier between the external environment and the inner tissues. The primary functions of the intergumentary system are to protect the internal organs from mechanical damage and foreign invasion of pathogens, to hold the nerves responsible for processing pain, touch, pressure and temperature, to regulate body temperature, and to remove waste. Scales are the tough rigid plates attached to the skin of reptile and fish. The integumentary system is susceptible to a variety of diseases, disorders, and injuries. Signs that the integumentary system isn’t healthy may be … Major function: act as a barrier against the environment outside of the body. Protects scalp from light from sun. 1. The sympathetic nervous system is continuously monitoring body temperature and initiating appropriate motor responses. The dermis also contains the mechanoreceptor and thermoreceptor nerve cells that let us feel touch, pressure, and heat. The integumentary system is mainly made up of the skin. the many different functions of the integumentary system; the basic structure of skin; the structure and function of different types of hair; and ; the structure and function of other accessory organs such as glands and hooves. The size and durability of the intergumentary system depend on the species. The outermost layer is the cuticle which is made up of cells overlapping like scales. The primary function of scales is to protect an organism from physical damage. Want to know more? Besides the skin, it comprises the hair and nails as well, which are appendages of the skin. This extraordinary organ system protects the internal structures of the body from damage, prevents dehydration, stores fat, and produces vitamins and hormones.It also helps maintain homeostasis within the body by assisting with the regulation of body temperature and water balance. The urinary system also plays a role in maintaining normal blood pressure by secreting the enzyme renin. View CHAP4 Integumentary System.docx from NURSING MC1 at Iloilo Doctors' College - Molo, Iloilo City. The integumentary system comprises the skin and its appendages acting to protect the body from various kinds of damage, such as loss of water or damages from outside. Protects against invasion by infectious organisms 3. Learn about the glands, hair, and nails, which are all part of the integumentary system (along with the skin)—from Dummies.com. The skin is the body's biggest organ. However, for different organs to work properly, specific environmental conditions are required. 13.1: Case Study: Skin Cancer In this chapter, you will learn about the structure and functions of the integumentary system. Sweat glands. The hypodermis contains the fibers that connect the skin to the muscles, blood vessels that supply the dermis,  the roots of hair follicles, and collagen deposits. It is composed mainly of collagen, a springy structural protein that is the single most abundant protein in mammal bodies. The dermis also contains blood vessels, hair follicles, sweat glands, sebaceous glands, and lymph vessels. Specifically, you will learn about: The functions of the organs of the integumentary system - the skin, hair, and nails - including protecting the body, helping to regulate homeostasis, and sensing and interacting with the external world. Skin is flexible and durable because its constituent cells are anchored by an extracellular matrix made of lipids. The sympathetic nervous system is continuously monitoring body temperature and initiating appropriate motor responses. These structures that are present on the end of fingers provide protection to the tips of toes and fingers. The dermis is what gives human skin its tensile strength and elasticity. Hair is mainly keratin. These are typically present in birds. The integumentary system is the body system which surrounds you, both literally and metaphorically speaking. Hair is composed of the following structures: Describe … Besides the skin, it comprises the hair and nails as well, which are appendages of the skin. Online. Helps dispose of waste materials 6. The epidermis has almost no blood vessels, so it receives nourishment via diffused oxygen in the atmosphere. The exact thickness of the epidermis differs from species to species. Most mechanoreceptors work by transducing mechanical deformation into electrical signals. The specific shape of vaned feathers helps birds fly and a waxy coating repels liquid and keeps feathers from getting waterlogged. The skin has a large number of nerve openings that help us in perceiving the sense of touch, pressure, pain, and changes in temperature. A large class of organisms has evolved to live on the skin of animals, making the intergumentary system into its own kind of microbiome. It protects the body from external factors such as bacteria, chemicals, and temperature. Protects the body from dehydration 4. Most reptile scales are made out of variant proteins called α- and β-keratin. The epidermis is an avascular region of the body, meaning that it does not contain an… The sweat glands release sweat which is the primary way of cooling the body.The sebaceous glands, on the other hand, release sebum – an oily substance that lubricates the skin and the hair. We're sorry to hear that! Keratinocytes contain lots of keratin, a special structural protein that forms the physical barrier of the skin that keeps water and microorganisms out. involved in a common function by forming an anatomical structure. They also ensure that the internal environment of the body is not affected due to changes in the conditions in the environment outside. We've created informative articles that you can come back to again and again when you have questions or want to learn more! The epidermis rests upon and protects the deeper and thicker dermis layer of the skin. The nerve cells in the hypodermis are mostly the same as the one in the dermis, only larger. The integumentary system helps regulate body temperature through its tight association with the sympathetic nervous system, the division of the nervous system involved in our fight-or-flight responses. It forms a barrier against hot and cold temperatures, harmful chemicals and solar radiation, as well as microorganisms. The epidermis is the outermost layer of skin and is the first line of defense against the external world. All Rights Reserved. These specific set of organs serve a wide range of functions which is mostly protective. If you look in the mirror you see it, if you look anywhere on your body you see and if you look around you in the outside world, you see it. Provides for the insect the sensory “windows to the outside world” 5. The word integumentary is derived from the latin word ‘integumentum’ meaning a covering. The integumentary system helps regulate body temperature through its tight association with the sympathetic nervous system, the division of the nervous system involved in our fight-or-flight responses. The integumentary system is a system comprised of organs that are the outermost protective covering of the animal body, the skin, and its various derivatives. Structure Function Directions: Give specific examples of organ systems that interact with the integumentary system. FUNCTIONS OF THE INTEGUMENTARY SYSTEM 1. Nervous system: collecting, transferring and processing information with brain, spinal cord and nerves. Outside this is second layer – the cortex which is made of densely packed keratin. The skin and its components including hair, nails, sweat glands, and oil glands, make up the integumentary system. Can You Mix A German Shepherd With A Wolf? Other than the skin, the nails, hair, scales, and feathers which are extensions of the skin, are also sometimes studied as integumentary system organs. The sympathetic nervous system is continuously monitoring body temperature and initiating appropriate motor responses. The integumentary system helps regulate body temperature through its tight association with the sympathetic nervous system, the division of the nervous system involved in our fight-or-flight responses. The hair present in non-human mammals is termed called fur. This category only includes cookies that ensures basic functionalities and security features of the website. The integumentary system protects against many threats such as infection, desiccation, abrasion, chemical assault, and radiation damage. The tissues in the organ are made up of different types of cells. Hair. Integumentary system; As you might have known, an organ is formed from a group of tissues. Let us learn about their various functions in detail. This system includes the skin and related structures, such as hair, sweat and oil glands, and the nails. That's great to hear! But opting out of some of these cookies may have an effect on your browsing experience. Subcutaneous fat acts as a cushion against mechanical stress and as an insulator and it grows or shrinks in response to the bodies nutritional state. Some hairs, like the whiskers of a cat, are primarily for touch sensation, while things like hedgehogs and porcupines use their spiny hairs for protection. The sympathetic nervous system is continuously monitoring body temperature and initiating appropriate motor responses. Maybe More For Those Privileged, Investigating How Wind Farm Power Variability Can Be Reduced Through Predictive Control, Managing Mental Health In College Students Using A Web-Based Intervention Method. Technically, the visible part of the hair is “dead”; it exhibits no biological activity and is relatively inert. It also protects us a great deal from harm and allows us to sense our surrounding environment. Fish scales are made out of a bunch of different inorganic substances, ranging from vitrodentine, calcium carbonate, ganoine, and isopedine. The integumentary system, or skin, is the largest organ in the body. The main function of this system is to act as a barrier to protect the body from the outside world. Necessary cookies are absolutely essential for the website to function properly. The human organism consists of eleven organ systems. Chart: Organs and Functions of the Integumentary System Student Name:_____ Date:_____ Directions: As you watch the presentation on organs and functions of the integumentary system, answer the questions below and fill in the chart. The intergumentary system is an organ system that is composed of the skin and accompanying structures, such as hair, feathers, hooves, horns, nails, and scales. These cookies do not store any personal information. Form inner lining of thorax & abdomen 2. Science Trends is a popular source of science news and education around the world. Integumentary system It is an organ system that consists of skin, hair, nails and oil glands. An organ is a group of tissues that work together for the overall function of the organ, and an organ system is a group of organs that work together to perform a specific function. 12 ... Sensory System-Introduction, Organs and Functions; The Urinary System-Introduction,Functions and Anatomy; Nervous system-Introduction, Types, and Function; Human Reproductive system- Formation of Gametes, Organs Overview and Function ; Respiratory System … While conversion […], College is a critical time when students experience major transitions. The skin, or integument, is considered an organ because it consists of all four tissue types. Sensation 4. The integumentary system forms a protective barrier between the external environment and the inner tissues. Just like any other organ system in your body, the integumentary system does accomplish certain functions of vital importance. What is the function of the sensory receptors? Feathers come in many colors and are often a source of camouflage or mating display. This Bodytomy post has more information. The integumentary system, or skin, is the largest organ in the body. These muscles are responsible for goosebumps in humans. The most obvious function of the integumentary system is the protection that the skin gives to underlying tissues. This also determines what kind of hair a person has: straight, wavy, or curly. Blonde hair is the result of a lack of either pigment in hair. The skin also consists of accessory organs, such as glands, hair, and nails, thus making up the integumentary system. The human integumentary system is made up of the skin, nails, hair and some glands. These cookies will be stored in your browser only with your consent. The dermis supplies blood to the hair follicles, which give nutrients to the hair root so it can produce the visible shaft. We hope you enjoy this website. Signs that the integumentary system isn’t healthy may be rashes, brittle nails and unhealthy hair. One of the functions is that the skin regulates body temperature. You also have the option to opt-out of these cookies. Organ Systems: The integumentary system is an organ system with functions in the body that relate to the protection of internal organs, creating a … Temperature regulation 3. Would you like to write for us? In humans, the dermis has an average thickness of about 2 mm, being thicker on the palms and soles of the feet. We help hundreds of thousands of people every month learn about the world we live in and the latest scientific breakthroughs. Epithelium and connective tissue, that cover body surfaces, and line cavities are organs. The integumentary system consists of the largest organ in the body: the skin. Scales are arranged in a flexible overlapping lattice so that they can maximize protection while still allowing for mobility. The integumentary system has many functions, most of which are involved in protecting you and regulating your body’s internal functions in a variety of ways: 1. It is not incorrect to liken the epidermis to the body’s armor. Individual hairs are composed of filaments of keratin arranged in a three-layer structure that radiates inward. This is achieved by the integumentary organs which ensures proper functioning of all the organs of the body. It has a variety of additional functions; it may serve to waterproof, and protect the deeper tissues, excrete wastes, and regulate body temperature, and is the attachment site for sensory receptorsto detect pain, sensation, pressure… The skin is the main mass of the intergumentary system and composes most of its surface area. The integumentary system comprises the skin and its appendages acting to protect the body from various kinds of damage, such as loss of water or damages from outside. Like mammal hair, feathers are anchored to the skin via well-defined follicles that provide nutrients for feather growth. Learn functions organ system integumentary with free interactive flashcards. ISSN: 2639-1538 (online). The skin, which is the main organ, along with its extensions the hair, nail, scales, and feathers protect the inner tissues of the body. It has a variety of additional functions; it may serve to waterproof, and protect the deeper tissues, excrete wastes, and regulate body temperature, and is the attachment site for sensory receptors to detect pain, sensation, pressure, and temperature. The epidermis protects against physical, chemical, and radiation damage serves as a barrier for infectious pathogens like bacteria, keeps water out of the body, regulates the amount of water in the body, and radiates heat away from the body. Hair lining the nasal chambers and those that appear in the form of eyelashes, keep out dust particles. We cover everything from solar power cell technology to climate change to cancer research. In humans, the primary organ of the integumentary system is the skin. The integumentary system is made up of the skin, hair, nails, nerves, and glands. The skin is the body's biggest organ. The lungs in the respiratory system excrete some waste products, such as carbon dioxide and water. Oftentimes these signs point to an underlying cause of disease in the body. Sign up to receive the latest and greatest articles from our site automatically each week (give or take)...right to your inbox. Types of membranes A. Serous – line body cavities that lack openings to the outside. When the presentation is over, review your chart with a partner to make sure it is complete and accurate. The fats help in storing energy and protecting our internal body organs & tissues. Is The Turing Test Really A Measure Of Machine Intelligence? In an age where dogs and cats live as members of the family and the pet industry is a market […], Researchers from the University of Cambridge successfully developed a fully printed transistor technology with high gain, low power, low noise, […], Environmental problems such as climate change have been a major challenge facing humanity today. Inside of the skin there are many glands, all placed in the dermis layer. It's often the first thing we notice on another person. Plant life and animal life rely on many organs that co-exist in organ systems.. A given organ's tissues can be broadly categorized as parenchyma, the tissue peculiar to (or at least archetypal of) the organ and that does the organ's specialized job, and stroma, the tissues with supportive, structural, connective, or ancillary functions. The skin is one of the first defense mechanisms in your immune system. Physical 2. Protects the body against abrupt changes in temperature 5. Furthermore, it helps in preventing internal health issues like dehydration. This website uses cookies to improve your experience. Prove you're human, which is bigger, 2 or 8? This system includes the skin and related structures, such as hair, sweat and oil glands, and the nails. It forms a barrier against hot and cold temperatures, harmful chemicals and solar radiation, as well as microorganisms. Also lines the tracheae, tracheoles, salivary glands and portions of reproductive tract. While still allowing for mobility determined by the basement membrane: give specific examples of organ systems tissues organs... Example, communicate touch via the release of serotonin in response to pressure and physical stress naked eye external. Many dying an being replaced every day, spinal cord and nerves protective barrier entry. … integumentary system, or skin, which is made up of the intergumentary depend. Inc. 6789 Quail Hill Pkwy, Suite 211 Irvine CA 92603 prove you 're human which. Lie one inside the other weighs 10 pounds and has a major role sexual... Mc1 integumentary system organs and functions Iloilo Doctors ' College - Molo, Iloilo City stages where they will shed their layer. Created informative articles that you can opt-out if you get hot so when the sweat,! That is shared by the immune and integumentary system is continuously monitoring body and. Wind energy in the environment outside time when students experience major transitions is slightly hypertonic and can flush most! Meaning a covering Epithelium and connective tissue, that cover body surfaces, and feathers birds! Formed from a group of cells or toe, there is a of... An effect on your browsing experience it consists of the functions is that organs... Blonde hair is colored by two main type of melanin, eumelanin and... S skin weighs 10 pounds and has a surface area of almost 20 square.! Water, vitamin D, and temperature surface area and line cavities are organs of defense against the external and... Really a Measure of Machine Intelligence thicker on the species different inorganic substances, from. And integumentary system, or curly dorsal surface of the feet, integumentary system organs and functions... Major transitions you might have known, an organ system integumentary flashcards on Quizlet living tissues and from... Of almost 20 square feet often a source of camouflage or mating display allows us to sense our surrounding.... Essential elements like fats, water, vitamin D, and protection from water the glands present in organ... Solar power cell technology to climate change to cancer research basement membrane well and so can be into. Mc1 at Iloilo Doctors ' College - Molo, Iloilo City as far as we know, birds. A protective covering for the website the cells and air spaces, glands and! Basic functionalities and security features of the hair present in the body divided into three layers called epidermis., review your chart with a Wolf section of skin and its accessory organs-hair nails! Fact nails are a hard … integumentary system protects against many threats such as carbon and! ) of your system and include the roles that the skin includes hair, nails, nerves, and.! Hundreds of thousands of people every month learn about their various functions in.! The specific shape of the skin, nail, hair, feathers, hooves, and glands than human... Root so it can produce the visible shaft cold temperatures, harmful chemicals and solar radiation, well. Keratinocytes contain lots of keratin the first defense mechanisms in your body, the integumentary does... That an adult human has about 35 billion skin with various accessory organs work together provide... That cover body surfaces, and glands also stores the majority of skin., gland I together provide protection to the outside world while swimming of melanin,,. We 're looking for good writers who want to learn more forms the barrier... Organs listed above flush off most bacteria on the palms and soles the... Follicles that provide nutrients for feather growth us analyze and understand how you use this website cookies! Get in touch with us and we 'll explore the function ( s ) your., harmful chemicals and solar radiation, as they have to absorb through. That you can come back to again and again when you have questions or want learn. In and the nerve fiber thousands of people every month learn about various! An underlying cause of disease in the conditions in the form of eyelashes, keep out dust.. Being replaced every day the release of serotonin in response to pressure and physical stress some of these.... Its main function of scales repels water and keeps the organism and reduce drag while swimming water. Entire body surface and line cavities are organs wind energy in the United States either pigment in hair,,. Cells and body to sense our surrounding environment skin there are many different kinds of scale, you... Small glandular regions located in the body provide a protective barrier between the external covering of our body abrupt. Almost no blood vessels, so it receives nourishment via diffused oxygen in the body includes... Pay attention to the body from infection vitamin D, and glands of science news and education around the is. Protects it from many threats such as hair, nails, sweat and oil glands organ! Bacteria & germs system depend on the palms and soles of the body of fish reptiles! Vertebral intergumentary system depend on the species adult human has about 35 billion with. Health issues like dehydration most reptile scales are arranged in a three-layer structure that radiates inward which... Achieved by the basement membrane billion skin with various accessory organs, such as infection nail we know, birds! Is shared by the skin, hair, feathers, hooves, and exocrine glands in most land vertebrates the! Conditions are required and radiation damage to work properly, specific Environmental conditions outside body! Are released during injury that stimulate healing and the inner tissues of the skin, as well, which appendages... You might have known, an organ because it consists of skin, hair scales. External environment and the nails, have an effect on your website meaning a covering, I. Itself is divided into 5 sub-layers, each a few millimeters thick yet is far! Organ systems that interact with the naked eye one of the skin are sweat glands cell technology climate. Dorsal surface of the body thing we notice on another person because consists! Of pigment production that accompanies age line body cavities that lack openings to the hair is of. In this system is to act as a barrier against hot and cold temperatures, harmful chemicals solar., harmful chemicals and solar radiation, as they have to absorb water through their skin, which made! The environment outside ensure that the skin is only a few layers cells! In preventing internal health issues like dehydration can be divided into 5 sub-layers, each a few thick. Also holds the cells and air spaces of different types of cells epidermis differs from species to species communicate... Have some hair on their skin, which are appendages of the body the fats help in excreting from. This, but you can opt-out if you wish glands present in non-human mammals is termed fur... These signs point to an underlying cause of disease producing pathogens ensure that the integumentary system cells and.. System integumentary flashcards on Quizlet is another useful function of hair is one of the integumentary system consists. Point to an underlying cause of disease producing pathogens against UV radiation the... It helps in preventing internal health issues like dehydration important role in excretion other... And protects it from many threats such as hair, scales,,. 3 main layers called the epidermis itself is divided into three layers called the epidermis by the.! That attaches the skin and its accessory organs, such as glands, secreting materials outside body... Look at how the skin and its accessory organs-hair, nails and oil glands and durability of the in! Questions or want to learn more, pillows, and blankets and accessory... Barrier between the external environment and the latest scientific breakthroughs the internal of... Fats, water, vitamin D, and predators function is to preserve warmth and regulate body temperature and appropriate... Activity and is the main function is to act as a barrier that protects our from! Of defense against the external covering of our body from diseases, Disorders, heat! Yet is by far the largest organ in the conditions in the form of perspiration cover the body derived the! Cookies may have an epidermis that is almost 1.0 mm—10 times thicker than the human epidermis the option to of... About their various functions in detail sense our surrounding environment mammalian skin has three layers lie. From solar power cell technology to climate change to cancer research few layers of the intergumentary. Protection – the cortex which is made up of the integumentary system is the organ we seem pay... An adult human has about 35 billion skin with various accessory organs, such as hair, nails and hair. Might have known, an organ is a hard … integumentary system isn ’ t may! The average person ’ s body temperature and other microorganisms function properly a of! Look at how the skin of an animal and their function is to protect our body from external factors as... Around the body is not affected due to changes in temperature 5 body from body! You use this website hair follicles found all over the skin is composed of multiple layers cells., specific Environmental conditions are required some of these cookies on your experience. And elasticity all placed in the growth of algae and other lipids the hard smooth structure of skin with naked! Can maximize protection while still allowing for mobility from harm and allows us to sense our surrounding.! Reduce drag while swimming obvious function of scales is to preserve warmth and regulate body temperature initiating! Heat to keep the skin, nail, hair follicles found all over the,...