Topics: Skin Structure, Growth & Nutrition Quiz
A fatty or oily secretion that lubricates the skin and preserves the softness of the hair is _____.
A. sebum
B. lymph
C. pus
D. melanin
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The scalp has larger and deeper ___ than the skin on the rest of the body.
A. melanocytes
B. propionibacterium acnes
C. sensory nerve fibers
D. hair follicles