Question

unit 2 - challenge 2.1: the integumentary
what is the primary function of hair in the integumentary system?
a.) to produce sweat and regulate body temperature
b.) to store fat and provide insulation
c.) to protect the body from cold and harmful organisms
d.) to provide structural support to the skin

Explanation:

Hair in the integumentary system mainly serves to protect the body. It can shield the body from cold (like hair on the head) and also acts as a barrier against some harmful organisms (e.g., eyelashes prevent debris and small organisms from entering the eyes).

• Option a: Producing sweat is the function of sweat glands, not hair.
• Option b: Storing fat is related to adipose tissue in the skin, not hair.
• Option d: Providing structural support to the skin is more related to connective tissues like collagen and elastin in the dermis, not hair.

Answer:

C. To protect the body from cold and harmful organisms