Exam 10: Nervous System

What structural feature of the sympathetic nervous system allows it to cause the "fight-or-flight" response to be both immediate and widespread?

How many pairs of spinal nerves connect to the spinal cord?

Cell bodies of the dorsal neurons are clustered in a knotlike structure called a ____________________.

Gray matter is found on the ____________________ of the brain,an area called the ____________________.

Where do most sympathetic ganglia exist?

Which nerve stimulates the diaphragm for breathing?

A nerve consists of many ____________________ encased in connective tissue.

Fibers that secrete acetylcholine are called ____________________ fibers.

In the peripheral nervous system,the myelin sheath is formed when ____________________ wrap themselves around the axon.

Which portion of the brain contains the midbrain,pons,and medulla oblongata?

Nerve fibers are gathered together in bundles called ____________________.

When you touch something hot,the type of neurons that send impulses allowing you to withdraw your hand are

A patient is admitted to the hospital with paralysis on the right side of the body.Magnetic resonance imaging reveals that he has suffered a stroke on the left side of his brain.What is the most likely explanation for the location of his symptoms?

A massive influx of sodium into a nerve cell causes ____________________.

A patient who is experiencing severe pain down the back of the leg most likely has an injury to a nerve in which plexus?

Gray matter primarily contains

The division of the nervous system that carries signals from nerve endings to the central nervous system is the

Sometimes called the "emotional brain," the ____________________ is the seat of emotion and learning.

Which statement about nerve impulse conduction in myelinated neurons is true?

When stimulated,channels on a resting neuron's membrane open and ____________________ from outside the membrane rushes into the cell,giving the cell's interior a ____________________ charge.