Select the incorrect statement about the parasympathetic nervous system.
A)It inhibits all cardiac muscle and smooth muscle.
B)Neurotransmitter from all its postganglionic fibers bind to muscarinic receptors.
C)Neurotransmitter from all its preganglionic fibers bind to nicotinic receptors.
D)Part of it originates in the brain
E)Part of it originates in the most inferior region of the spinal cord.

Question

Quizplus · Accepted Answer

The parasympathetic nervous system does not inhibit all cardiac muscle and smooth muscle. It actually stimulates smooth muscles in the gastrointestinal tract, urinary bladder, and reproductive organs. It also slows down the heart rate but does not inhibit it completely.

Select the Incorrect Statement About the Parasympathetic Nervous System