The organs that make up the integumentary system include skin, hair, nails, glands, and sensory nerves.
What are the main parts of the integumentary system?
The integumentary system is an organ system consisting of the skin, hair, nails, and exocrine glands. FUN FACT: The skin is the largest organ of the human body!
What are the 4 main functions of the integumentary system?
The skin and accessory structures perform a variety of essential functions, such as protecting the body from invasion by microorganisms, chemicals, and other environmental factors; preventing dehydration; acting as a sensory organ; modulating body temperature and electrolyte balance; and synthesizing vitamin D.
What are the 4 types of glands in the integumentary system?
Four types of exocrine glands within human skin—Sweat, sebaceous, ceruminous, and mammary glands. Sweat glands, are further divided into eccrine and apocrine glands. Eccrine glands are distributed throughout the body and primarily produce serous fluid to regulate body temperature.
What are the 5 main functions of the integumentary system?
- Protection. The skin protects against abrasion and the harmful effects of ultraviolet light. …
- Sensation. …
- Temperature regulation. …
- Vitamin D production. …
- Excretion.
What are the 6 functions of the integumentary system?
The skin performs six primary functions which include, protection, absorption, excretion, secretion, regulation and sensation.
How does integumentary system contribute to immunity?
It retains body fluids and defends against the entry of invaders such as viruses, bacteria and parasites. It also helps to maintain a constant body temperature. Skin contains receptors that sense, for example, temperature, touch and pain. … Recent research has shown that the skin plays an important role in immunity.
What are the three parts of the integumentary system?
The three parts of the integumentary system are the skin, hair and nails. What are the functions of the integumentary system? Its main function is to act as a barrier to protect the body from the outside world.
What are 7 functions of the integumentary system?
- Protection. Microorganism, dehydration, ultraviolet light, mechanical damage.
- Sensation. Sense pain, temperature, touch, deep pressure.
- Allows movement. Allows movement muscles can flex & body can move.
- Endocrine. Vitamin D production by your skin.
- Excretion. …
- Immunity. …
- Regulate Temperature.
What is the first most vital purpose of the integumentary system?
The Skin’s Functions (1:21) If you recall our recent run-ins with rogue nails and tattoo needles, you’ll probably remember that the first and most vital purpose of your integumentary system is to act as a protective barrier.
What are the 3 layers of skin?
- The epidermis, the outermost layer of skin, provides a waterproof barrier and creates our skin tone.
- The dermis, beneath the epidermis, contains tough connective tissue, hair follicles, and sweat glands.
- The deeper subcutaneous tissue (hypodermis) is made of fat and connective tissue.
What controls the integumentary system?
The integumentary system protects the body’s internal living tissues and organs, protects against invasion by infectious organism, and protects the body from dehydration.
Is a sweat gland?
Sweat gland | |
---|---|
System | Integumentary |
Nerve | Eccrine: cholinergic sympathetic nerves Apocrine: adrenergic nerves |
Identifiers | |
Latin | Glandula sudorifera |
Is stratum Basale the basement membrane?
Stratum basale, also known as stratum germinativum, is the deepest layer, separated from the dermis by the basement membrane (basal lamina) and attached to the basement membrane by hemidesmosomes.
How does the integumentary system affect the lymphatic system?
The integumentary system interacts with the lymphatic system through their shared function of protecting the body from infection.
How does integumentary work with other systems?
The skin and other parts of the integumentary system work with other organ systems to maintain homeostasis . The skin works with the immune system to defend the body from pathogens by serving as a physical barrier to microorganisms. Vitamin D is needed by the digestive system to absorb calcium from food.
What are papillae?
Papillae are the little bumps on the top of your tongue that help grip food while your teeth are chewing. They also have another special job – they contain your taste buds, the things that help you taste everything from sour lemons to sweet peaches.
What are the 7 layers of skin?
- Stratum corneum.
- Stratum lucidum.
- Stratum granulosum.
- Stratum spinosum.
- Stratum basale.
- Dermis.
- Hypodermis.
What are the 4 appendages of the skin?
The skin appendages include sweat glands, nails, and the pilosebaceous unit of the skin, comprised of the hair shaft, hair follicle, sebaceous gland, and arrector pili muscle — these appendages derive from a down growth of the epidermis beginning in the third month of fetal life.
What are the 9 functions of the skin?
- Provides a protective barrier against mechanical, thermal and physical injury and hazardous substances.
- Prevents loss of moisture.
- Reduces harmful effects of UV radiation.
- Acts as a sensory organ (touch, detects temperature).
- Helps regulate temperature.
- An immune organ to detect infections etc.
What are keratinocytes?
Definition and Location. Keratinocytes represent the major cell type of the epidermis, the outermost of the layers of the skin, making up about 90 percent of the cells there. They originate in the deepest layer of the epidermis, the stratum basale and move up to the final barrier layer of the skin, the stratum corneum.
What is the white layer of skin called?
Dermal White Adipose Tissue: A Newly Recognized Layer of Skin Innate Defense. Dermal white adipose tissue is a unique layer of adipocytes within the reticular dermis of the skin.
What is the thickness of skin?
Although it is only about 2 mm thick (about 0.07 inches) it covers about 20 square feet of surface and weighs about 3 killograms (just over 6 pounds). Depending on how you count them, the human skin has three layers.
Is sweat excretion or secretion?
“Excretion” is the removal of material from a living thing while “secretion” is the movement of material from one point to another. … For an example of excretion, humans excrete such materials as tears, feces, urine, carbon dioxide, and sweat while secretion, on the other hand, includes enzymes, hormones, or saliva.
What is sweat made of?
A body has between two and four million sweat glands lying deep in the skin. They are connected to the surface by coiled tubes called ducts. You perspire constantly, even without exercise. Sweat is a liquid made from 99% water and 1% salt and fat.
What cells produce black pigments?
In this layer lie important cells called melanocytes. Their name is derived from two parts: melano-, which means black or darkness, and -cyte, which means cell. Melanocytes are irregularly shaped cells that produce and store a pigment called melanin.