The chloride shift
A) regulates the amount of salt in the large intestine compared to the small intestine.
B) maintains the ionic balance between the red blood cells and the plasma.
C) inflates alveoli while decreasing oxygen delivery to tissues.
D) replaces carbonic anhydrase.
B
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The three functions of synovial fluid are nutrient distribution, shock absorption, and
A) stabilization. B) lubrication. C) padding. D) strengthening. E) enzyme secretion.
Rhythmicity of breathing involves
A. the pre-Bötzinger complex of the ventral respiratory group. B. pontine respiratory group as a necessary part. C. conscious effort and control. D. a set pattern of inspiration-expiration that is always the same. E. stimulation of inspiration. Expiration is automatic.
If the permeability of sodium ions increases in an axon,
A) the membrane potential will depolarize. B) the membrane potential will hyperpolarize. C) inward movement of sodium ions will increase. D) outward movement of sodium ions will decrease. E) both the inward movement of sodium ions will increase and the membrane potential will depolarize.
The function of the auditory tube is to
-provide a passageway for sound waves to enter the ear. -amplify sounds. -redistribute endolymph after hearing a sound. -equalize air pressure on both sides of the tympanic membrane. -help maintain equilibrium.