What term is used to describe receptors that respond to increased pulmonary capillary pressure?
a. Irritant receptors
b. Chemoreceptors
c. Stretch receptors
d. J-receptors
ANS: D
J-receptors (juxtapulmonary capillary receptors) are located near the capillaries in the alveolar septa. They are sensitive to increased pulmonary capillary pressure, which stimulates them to ini-tiate rapid, shallow breathing, hypotension, and bradycardia.
Neither irritant receptors, chemoreceptors, nor stretch receptors respond to increased pulmonary capillary pressure.
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