45. Nervous System

Which of the following events will cause an excitatory postsynaptic potential (EPSP) in a neuron?

The metabolic center of the neuron is indicated by ________.

The speed of an action potential depends on which of the following factors?

The term 'synapse' refers to the tiny ______ between neurons.

Another name for a nerve cell is:

Which of the following is most directly responsible for the falling (repolarizing) phase of the action potential in a neuron?

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: