Exam 4: The Nervous System

Unlike neurons,glial cells in the brain are purely for support and are incapable of communicating with each other.

In the neuron,neurotransmitters are stored in the myelin sheaths.

The disease ______________ results from a loss of myelin wrappings.

The complex branching parts of a neuron that receive information from other neurons are called dendrites.

What are the steps involved in the life cycle of a neurotransmitter?

Which of these is NOT one of the four important regions found in every neuron?

It is possible to have an action potential that is relatively small in magnitude (if few channels are open).

Suppose you wanted to prescribe a hypothetical drug that would have an overall excitatory effect on the nervous system.Which would you choose?

The ______________ is an important link between the brain and the pituitary gland,and is involved in feeding,drinking,temperature regulation,and sexual behavior.

In addition to neurons,the brain contains an even larger number of another cell type known as

The process in which enzymes within neurons convert precursors into neurotransmitter molecules is called

Neurotransmitter molecules are released into the small space between two neurons called the

Specialized structures that recognize neurotransmitter molecules and,when activated,may cause a change in the electrical activity of the neuron,are called

Describe the structure of a neuron.

The brain imaging technique that involves injection of radioactive chemicals in order to measure brain function is called

Parasympathetic and sympathetic refer to the two branches of the

One of the main ways that drugs can affect neurotransmitter systems is by cutting off blood flow to a specific brain structure.

Describe the differing effects of the sympathetic and parasympathetic branches of the autonomic nervous system.

The neurotransmitter at the end organ of the sympathetic branch of the autonomic nervous system is

MRI and PET are two types of neurotransmitter chemicals.