Exam 22: Autonomic Nervous System

The autonomic nervous system functions independently of the cerebral cortex.

Explain in general, what the function of the parasympathetic nervous system is.

Explain the principle of autonomic antagonism and why it is important in maintaining homeostasis.

Blood vessels in both digestive organs and skeletal muscles are dilated by sympathetic stimulation.

Sympathetic preganglionic neurons begin within the brain.

All cranial nerves except nerves I and II contain parasympathetic fibers.

The autonomic nervous system includes only efferent neurons.

The parasympathetic nervous system is also called the craniosacral division.

The sympathetic trunk runs from C8 to L4.

What is the name of the enzyme that terminates the action of acetylcholine?

A small child runs in front of your car. You slam on the brakes, skid, and miss hitting the child by inches. What effects did your autonomic nervous system have on your body as you reacted to this situation? Explain why it will take you a while to calm yourself after this incident.