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Question
The human heart
a. contracts as a result of stimuli from the sinoatrial node.
b. contracts only as a result of nerve stimulation from the central nervous system.
c. is activated primarily through the autonomic nervous system.
d. rate is primarily under the control of the atrioventricular node.
e. is independent of all nervous control.
Answer
This answer is hidden. It contains 1 characters.
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