The liver converts cholecalciferol to calcidiol, which is then converted to calcitriol (the active chemical form of the vitamin) in the kidneys. Protects the body against abrupt changes in temperature 5. The epidermal layer of human skin synthesizes vitamin D when exposed to UV radiation. It also is the first line of defense against abrasive activity due to contact with grit, microbes, or harmful chemicals. Read also: How To Cure Fungus On Toenails. 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. Protection from injury
2. The skin protects the rest of the body from the basic elements of nature such as wind, water, and UV sunlight. (credit: “Wbensmith”/Wikimedia Commons). Figure 3. Despite the risk, the practice of piercing the skin for decorative purposes has become increasingly popular. Spell. Vitamin D is essential for normal absorption of calcium and phosphorous, which are required for healthy bones. The skin, in its own way, functions as a form of armor—body armor. The fact that you can feel an ant crawling on your skin, allowing you to flick it off before it bites, is because the skin, and especially the hairs projecting from hair follicles in the skin, can sense changes in the environment. Choose from 500 different sets of functions 5 integumentary system flashcards on Quizlet. Meanwhile, sweat glands (sudorifera) serve to secrete sweat when body temperature increases. • 5.3.D Develop a plan to prevent the spread of disease. This is the deepest layer containing lipocyte cells that produce a lot of fat. The integumentary system includes hair, scales, feathers, hooves, and nails. 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. The underlying hypodermis has important roles in storing fats, forming a “cushion” over underlying structures, and providing insulation from cold temperatures. The skin also secrets human defensin, a … Learn functions 5 integumentary system with free interactive flashcards. In this micrograph of a skin cross-section, you can see a Meissner corpuscle (arrow), a type of touch receptor located in a dermal papilla adjacent to the basement membrane and stratum basale of the overlying epidermis. Protects the body's internal living tissues and organs 2. Integumentary system function. 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. Control body temperature
5. Read also: Things that can damage the skin. In the skin, these changes are reflected in decreased mitosis in the stratum basale, leading to a thinner epidermis. Also known as the integumentary system, the skin and its appendages are responsible for a plethora of different functions. Unit 1 – The Integumentary System SOLs • 5.1. Petite Protection Rhinos Regulation of Body Temperature Can’t Cutaneous Sensation Mimic Metabolic Function Big Blood Reservoir Elephants Excretion Protection The I.S. Generally, skin, especially on the face and hands, starts to display the first noticeable signs of aging, as it loses its elasticity over time. 5.5. The sympathetic nervous system is continuously monitoring body temperature and initiating appropriate motor responses. 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