Exam 14: The Autonomic Nervous System

The route of major parasympathetic outflow from the head is via the_________ .

Autonomic ganglia are motor ganglia, containing the cell bodies of motor neurons.

The craniosacral division is another name for the parasympathetic division.

The effect of the parasympathetic division on the penis is vasodilation causing erection, while ejaculation is due to sympathetic stimulation.

Somatic and visceral reflex arcs are similar, but visceral reflex arcs lack afferent fibers (visceral sensory neurons).

Where would you NOT find autonomic ganglia?

Because many of the same cardiac cells are innervated by both parasympathetic and sympathetic fibers, the influence of the two divisions on the heart is synergistic, meaning contraction is strongest when both divisions act together.

Which is an exclusively sympathetic function?

The gray rami communicantes consist of myelinated postganglionic fibers.

Which of the following is NOT a plexus of the vagus (X) nerve?

The smooth muscle of the digestive viscera is served largely by the _________ .

Norepinephrine-releasing fibers are called cholinergic fibers.

Describe outcome criteria that can be used to evaluate whether a patient is effectively coping with a stressful problem.

The autonomic and somatic nervous systems are two separate systems that work totally independent of each other and lack any functional overlap.

Sympathetic nerves may leave the spinal cord at which vertebra?

The autonomic nervous system may cause activation or inhibition, depending on the division that is active and the target that is affected.

The parasympathetic division innervates more organs than the sympathetic division.

Control of temperature, endocrine activity, and thirst are functions associated with the__________ .

)-adrenergic receptors are the only receptors found on the heart.

Visceral reflexes include the reflexes that empty the bladder and the rectum.