A&P Ch.14 Autonomic Nervous System - Quiz

Preganglionic fibers of parasympathetic neurons can be found in which cranial nerves?

III (Oculomotor nerves), VII (Facial Nerves), IX (Glossopharyngeal), X (Vagus)

Which of the following occurs from spinal segments T 1 to L 2?

Sympathetic preganglionic fibers join the ventral root of each spinal nerve.

Dual innervation refers to an organ receiving

both sympathetic and parasympathetic nerves.

Postganglionic fibers of autonomic neurons are usually

connected to cardiac muscle, smooth muscle, glands, and adipocytes. located in the brain.

Effects produced by the parasympathetic branch of the autonomic nervous system include

increased secretion by digestive glands.

An autonomic motor neuron whose cell body lies in the CNS is called a(n)

preganglionic neuron.

The division of the autonomic nervous system that prepares the body for emergencies is the

sympathetic division.

Which of the following fibers usually release norepinephrine (NE)?

sympathetic postganglionic

The effects of neurotransmitters released by the modified neurons of the adrenal medullae resemble those produced by stimulation of

sympathetic postganglionic fibers.

Almost 75 percent of all parasympathetic outflow travels along the

vagus nerve.