7. Describe the protective barriers used by the integumentary system to protect

Question

7. Describe the protective barriers used by the integumentary system to protect the body.

8. Why is profuse sweating on a hot day beneficial, and yet also a potential problem?

9. Keratinocytes in the skin are flat, contain melanin, and also contain keratin. Do these three structural elements promote or prohibit the function of the skin? Do keratinocytes in the skin exhibit structure-function complementarity? Explain why they do or do not exhibit structure-function complementarity. Be sure to mention functions and/or structures not stated in the question.

10. What is the difference between sensible and insensible perspiration?

Explanation / Answer

7. The main function of integumentary system is protection. It consists of skin, hair, nails, etc. These parts protect the internal organs from external adverse factors. Skin is the primary protector while hair and nails protect soft regions in the body against temperature variations and other external harm.

8. Sweating is a mechanism used by the body to cool down the temperature of the body. This is beneficial on hot days as it helps in maintaining temperature. However it also has disadvantages as it leads to dehydration.

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