Neuroscience Quiz

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.

The main function of myelin is to

The part of the nerve cell specialized for conducting information is the

The cell body of a neuron is also called the

Neurons are made up of dendrites, a soma, and

Which of the following is NOT a part of a neuron?

The nature of a nerve impulse is primarily a/an __________ event; whereas, the nature of the communication between neurons is primarily a/an __________ event.

Acetylcholine, epinephrine, dopamine, and histamine are

The conduction of a nerve impulse down the axon is called a(n)

Communication within a neuron is __________, while communication between neurons is __________.

The branching fibers of the __________ end in __________ and link with parts of other neurons.

After successfully running from the large, snarling, drooling grizzly bear that was running directly toward you, you pause to catch your breath and collect your wits. The physical symptoms you now experience are controlled by the

An action potential actually occurs because

The charge that exists across the nerve cell membrane is a result of differing

The part of the neuron that specializes in receiving messages from other neurons is the

Nerve cell bodies and dendrites are not the only locations sensitive to neurotransmitters. Receptor sites can also be found on

The channels that transport sodium and potassium within the axon are called

Neurons conduct an action potential

Neurotransmitters are primarily associated with the

Body cells specialized to carry and process information are called

Which is the best explanation of how a nerve impulse is carried from one neuron to another? The action potential or impulse

The fastest neurons can send impulses at about __________ miles per hour.

A nerve cell carrying information from your brain to muscles and glands is called a(n)

The "emergency" part of the nervous system that prepares the body for "fight or flight" is the __________ branch.

The effect of mind-altering drugs may be a result of their

A nerve impulse is also called a(n)

Muscles can contract because they are made up of

The "all-or-nothing event" refers to the fact that

A barefoot child steps on a bee, then jerks his or her foot back in response to the sting. This response has likely involved all parts of the nervous system EXCEPT

The chemicals released at an axon terminal are called

Neurotransmitters are released at the

An action potential refers to the traveling of a nerve impulse along the

The role of the __________ nervous system is to relax the body and return it to a lower level of arousal.

Electrically charged particles of the elements __________ are crucial in the transmission of the nerve impulse.

The autonomic nervous system contains two branches called the

__________ is the correct sequence of events in communicating a stimulus (such as stepping on a tack) to another neuron.

Information is first received by a nerve cell at the

In the nervous system, electrical charges are set up because of unequal concentrations of ions inside and outside the cell. This state is known as a(n)

The function of the sympathetic nervous system is to prepare the body for

The microscopic space between two neurons is called a(n)

A nerve cell carrying information from your eyes, ears, fingers, etc. toward the CNS is called a(n)

Emotional responses to a traumatic event are most directly under the control of the

The fatty layer of tissue that gives many nerves a whitish color is called

The soma is the part of the nerve cell that

What effect do neurotransmitters from one neuron have on the next neuron?

Many of the chemicals that affect the brain operate by