Cardiac contraction and relaxation are controlled by a. A specific area in the brain. b. The sympathetic
Question:
Cardiac contraction and relaxation are controlled by
a. A specific area in the brain.
b. The sympathetic nervous system.
c. The autonomic nervous system.
d. Action potential and electrical conduction arising within the heart.
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The correct answer is d Action potential and electrical conduction arising within the heart Explanat...View the full answer
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