The part of the hair that extends beyond the skin surface is called the

A. bulb.
B. alopecia.
C. papilla.
D. shaft.
E. root.


Answer: D

Anatomy & Physiology

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About 90% of the neurons in the nervous system are ________ neurons

A) association B) afferent C) motor D) efferent E) sensory

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Sympathetic nerve fibers are not associated with situations involving ________

A) anger B) arousal C) stress D) digestion E) exercise

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BMI measures

A) the amount of body fat. B) the basal metabolic rate. C) weight in proportion to height. D) volume in proportion to area.

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Which vessel has only the tunica intima layer?

A) artery B) vein C) arteriole D) venule E) capillary

Anatomy & Physiology