Which receptors initiate reflexes in heart rate and breathing in response to changes in systemic blood pressure?
A. carotid sinus and aortic baroreceptors
B. peripheral proprioceptors
C. aortic bodies and carotid bodies
D. J-receptors
Answer: A
Health Professions
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Stem cells are undifferentiated, meaning that they:
A) Cause viral proliferation. B) Do not perform specific functions in the body. C) Differentiate themselves from other types of cells. D) Can be found in any type of cell in the body.
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A respiratory therapist is calibrating a thermal conductivity helium analyzer. What should the analyzer read when exposed to room air?
A. 100% B. 79% C. 21% D. 0%
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