The main components of the skin are the:
a.epidermis, dermis, hypodermis, and the subcutaneous layer.
b.epidermis and dermis.
c.dermis and hypodermis.
d. epidermis, dermis, and hypodermis.
How do nutrients reach the epidermis of the skin?
a. Blood vessels carry nutrients directly into the epidermis.
b. Nutrients migrate in vesicles from the hypodermis into the epidermis.
c. Diffusion transports nutrients from blood vessels in the dermis into the epidermis.
d. Solute pumping transports nutrients into the epidermis.
Which of the following is NOT a function of the skin?
b. vitamin A synthesis
The region of skin that provides a tough barrier against pathogens and trauma is the:
a. subcutaneous layer.
Which of the following is an appropriate skin response to cold?
a. dermal blood vessels vasoconstrict
b. dermal blood vessels vasodilate
c. vitamin D production increases
d. sebaceous gland secretions increase
What is the most numerous cell type in the epidermis?
c. Merkel cell
d. dendritic (Langerhans) cell
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