45. Nervous System

The substance that is released at axonal endings to propagate a nervous impulse is called:

An action potential is self-regenerating because __________.

The process of firing an action potential begins when a neuron is stimulated and:

Chemical communicators called ______ are released when action potentials reach terminal buttons.

Which process enhances the transmission of action potentials at existing synapses?

In the human brain, what is the approximate ratio of glial cells to neurons?

Dendrites receive stimulus input from which of the following sources?

Any nerve cell that conducts a signal towards the spinal cord or brain is called a:

Some drugs may act on all types of neurons by:

Which structure of a neuron is primarily responsible for receiving incoming signals from other neurons?

The arrival of an action potential at the synaptic knob results in which of the following?

Even at rest, most neurons have periodic production of action potentials, known as the ____.

Which of the following is NOT a characteristic of neurons?

Which part of the neuron conducts impulses away from the nerve cell body?

Most metabolic and regulatory functions in a neuron occur in which part of the cell?