Although the integument is a covering, it is by no means simple, and some of its functions include ________.?

Question

a. the dermis providing the major mechanical barrier to chemicals, water, and other external substances

b. resident macrophage-like cells whose function is to ingest antigenic invaders and present them to the immune system

c. cooling the body by increasing the action of sebaceous glands during high-temperature conditions

d. epidermal blood vessels serving as a blood reservoir

Answer 1

(a) is a false statement because the epidermis provides a mechanical barrier.

(c) is false because the cooling effect is by the sweat/sudoriferous glands and not sebaceous (oil) glands.

(d) is false because epidermis lacks blood vessels.

Therefore the correct answer is B.

Answer 2

c. cooling the body by increasing the action of sebaceous glands during high-temperature conditions

Answer 3

a