What group of nerve cells senses and responds to changes in the chemical composition of its fluid environment?
a. Chemoreceptors
b. Gamma-efferent system
c. Muscle spindle fibers
d. Proprioceptors
ANS: A
Hypercapnia, acidemia, and hypoxemia stimulate specialized nerve structures called chemore-ceptors.
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Answer the following statement true (T) or false (F)