The Hering-Breuer reflex
A) functions to increase ventilation with changes in blood pressure.
B) alters pulmonary ventilation when the PO2 changes.
C) alters pulmonary ventilation when the PCO2 changes.
D) protects the lungs from damage due to overinflation.
E) is an important aspect of normal, quiet breathing.
D
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Aquaporins are believed to be present in red blood cells and kidney tubules, but not in any other cells in the body
Indicate whether the statement is true or false
The multiple thin, branched structures on a neuron whose main function is to receive incoming signals are the
A) somata. B) cell bodies. C) dendrites. D) axons. E) None of the answers are correct.
The sympathetic nervous system releases ACh at the neuroeffector synapse of
A) digestive glands. B) blood vessels in skeletal muscles. C) cardiac muscle. D) smooth muscles. E) All of the answers are correct.
A proteolytic enzyme secreted by the pancreas is ________.
A. amylase B. ribonuclease C. chymotrypsin D. pancreatic lipase E. enterogastrone