The nose is divided into right and left halves called the __________.
A. nasal cavities
B. nasal fossae
C. nasal septa
D. nasal vestibules
E. nasal apertures
B. nasal fossae
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We enjoy sunbathing because it stimulates keratinocytes to release
A. keratin. B. collagen. C. beta endorphin. D. carotene.
When does urine production end?
A) when the fluid enters the distal convoluted tubule B) when the fluid enters the collecting ducts C) when the fluid enters the papillary ducts D) when the fluid enters the minor calyx E) when the fluid enters the renal pelvis
The exchange of nutrients and gases between the blood and tissue cells is the primary function of
A. veins. B. arteries. C. arterioles. D. capillaries. E. venules.
The part of the hair that extends beyond the skin surface is called the
A. bulb. B. papilla. C. alopecia. D. root. E. shaft.