Sound travels directly to the eardrum through the
A) pinna.
B) external auditory canal.
C) cochlea.
D) vestibule.
E) ear ossicles.
Answer: B
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The juxtaglomerular apparatus of the kidneys release a hormone ________
A) That dilates blood vessels B) Called antidiuretic hormone C) That increases the absorption of chloride from the filtrate D) That causes vasoconstriction
The central nervous system consists of the __________, which is found within the skull, and the __________ __________, which is found within the vertebral column.
Fill in the blank(s) with the appropriate word(s).
Medications that treat constipation should include ions such as sodium and magnesium, since water will follow these ions into the intestinal lumen via osmosis.
Answer the following statement true (T) or false (F)
Sympathetic stimulation of the kidney results in
A. constriction of afferent arterioles and an increase in the surface area of the glomerulus. B. constriction of afferent arterioles and a decrease in the surface area of the glomerulus. C. dilation of afferent arterioles and an increase in the surface area of the glomerulus. D. dilation of afferent arterioles and a decrease in the surface area of the glomerulus.