Which Statement Regarding Autonomic Innervation of the Heart Is Correct

question 96

Multiple Choice

Which statement regarding autonomic innervation of the heart is correct?

• A) The release of norepinephrine (NE) and epinephrine (E) by the adrenal medulla decreases the force and degree of contraction.
• B) Norepinephrine released by sympathetic neurons increases the heart rate.
• C) Acetylcholine released by parasympathetic neurons results in increased heart rate.
• D) Parasympathetic release of norepinephrine at synapses in the myocardium result in an increase in stroke volume.
• E) Acetylcholine released by sympathetic neurons result in an increase in the force of cardiac contractions.

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