Term

Action Potential

Definition

A transient all-or-nothing electrical current that is conducted down the axon when the membrane potential reaches the threshold of excitation.

Term

Axon

Definition

Part of the neuron that extends off the soma, splitting several times to connect with other neurons; main output of the neuron.

Term

Brain Stem

Definition

The “trunk” of the brain comprised of the medulla, pons, midbrain, and diencephalon.