Question

The skin acts as a barrier to protect the body. Describe how the cutaneous membrane protects the body from different environmental factors:

Answer 1

• Skin is the largest organ in the body , it covers almost surface area of body.

Main function include

1. It protect skin against harmfull UV radiation .
2. It also prevent the excessive loss of water from the body.
3. It regulate body temperature .
4. Some amount waste materials are also excreted through the skin.

• Presence of keratin layer and glycolipid in the stratum corneum act as protective barrier for skin.
• Skin mainly consist of three layers , outer epidermis , middle dermis and inner layer of subcutis also provide protection.
• Most ok skin are covered by hair , which also prevent direct entry of pathogen into the body.