The epidermis
A) retains water in deeper skin layers.
B) keeps out harmful chemicals and pathogens.
C) protects the skin against mechanical injury.
D) all of the above.
Correct Answer:
Verified
Q21: Eumelanin and pheomelanin are
A)reddish-yellow and brownish-black pigments,
Q22: The nail plate is produced by
A)bone cells.
B)fibroblasts.
C)melanocytes.
D)specialized
Q23: Corns are
A)areas of white skin pigmentation.
B)scaly scalp
Q25: The epidermis is about _ mm thick
Q26: You step out of the shower and
Q27: In areas of the skin where the
Q34: The major blood vessels that supply the
Q35: Which of the following is not a
Q37: The nerve fibers in the dermis stimulate
A)blood
Q49: Gray hair is
A)caused by a pigment, pseudomelanin.
B)a
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