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Module 2a - A&P
Introduction to the Human Body
Question | Answer |
---|---|
integumentary system | the skin , the accessory structures (sweat glands, oil glands, hair, and nails), and |
the subcutaneous tissue below the skin | |
integumentary system | most important role; to protect the body from harm or act as a barrier against the external environment |
integumentary system functions: | keeps harmful substances out of the body and helps retain water and electrolytes |
protects the internal structures and organs from injuries due to blows, cuts, harsh chemicals, sunlight, burns, and pathogenic microorganisms | |
performs an excretory function although minor it is able to excrete water, salt and small amounts of wastes such as urea | |
acts as a gland by synthesizing vitamin D | |
performs a sensory role by huosing the sensory receptors for touch, pressure, pain, and temperature | |
important role in the regulation of body temperature |