Integumentary System

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Board 7, Group 5

Integumentary System
1. Let's talk anatomy and physiology of the integumentary system. Give a review of the functions this system carries out for us. Then give a description of the structures and their functions that make up this system. Include all accessory structures and sensory receptors, glands and muscles. The integumentary system has multiple roles in homeostasis, including protection, temperature regulation, sensory reception, biochemical synthesis, and absorption. All body systems work in an interconnected manner to maintain the internal conditions essential to the function of the body. The integumentary system consists of the skin and accessory structures such as hair, nails and glands. The integumentary system is very important because its main organ, the skin covers and protects the entire body. The skin has an important job of protecting the body and acts somewhat as the body’s first line of defense against infection, temperature change or other challenges to homeostasis. A major function of the subcutaneous tissue is to connect the skin to underlying tissues such as muscles. It helps to regulate the body’s temperature and is also a sensory organ. There are also other structures called appendages to the skin. They are sweat and oil glands, sensory receptors, hair, and nails. The sweat and oil glands secrete fluids that aid in cooling the body and lubricating the skin. The sensory receptors allow our brain to respond to the senses that they pick up so our bodies are protected. The hair covers the skin to serve as an insulation to help regulate the body’s temperature, as an extra protective layer over the skin, and hair on the scalp provides insulation from cold for the head. The hair of eyelashes and eyebrows helps keep dust and perspiration out of the eyes, and the hair in our nostrils helps keep dust out of the nasal cavities. Any other hair on our bodies no longer serves a function, but is an evolutionary remnant. Nails...
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