Some neurons in the vagus nerve terminate on sinoatrial (pacemaker)cells in the heart.These neurons secrete acetylcholine,which ultimately results in a decreased heart rate.This is an example of
A)Endocrine control
B)Exocrine control
C)Hormonal control
D)Neural control
E)None of the choices are correct

Question

Quizplus · Accepted Answer

This is a clear example of neural control, where neurons in the vagus nerve communicate with sinoatrial cells in the heart through the release of acetylcholine neurotransmitter, resulting in a decrease in heart rate. Endocrine control involves the release of hormones into the bloodstream, while exocrine control involves the release of substances outside of the body. Hormonal control refers to the regulation of physiological processes through hormones. None of the choices are correct is not a valid answer in this case, as neural control accurately describes the mechanism at play here.

Some Neurons in the Vagus Nerve Terminate on Sinoatrial (Pacemaker)cells