The space that exists between nerve cells is known as the:

a. Synapse
b. Postganglionic region
c. Preganglionic region
d. Neuroeffector junction

a
Rationale: a. Correct.
b. Postganglionic nervous tissue exists outside the autonomic ganglia.
c. Preganglionic nervous tissue exists at the autonomic ganglia.
d. A neuroeffector junction exists between a nerve and its target organ.