Baroreceptors and chemoreceptors send signals to the cardiac center in the pons which initiates sympathetic impulses to increase heart rate.
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Q12: Parasympathetic stimulation generally increases cardiac output.
Q13: The layer of the heart wall that
Q14: The heart lies within the
A) mediastinum
B) pleural
Q15: The base of the heart is more
Q16: All chambers of the heart are in
Q18: The muscular tissue of the heart is
A)
Q19: The first heart sound is due to
Q20: The innermost layer of the heart wall
Q21: The chordae tendineae and papillary muscles have
Q22: The ascending aorta is continuous with the
A)
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