________ neurons are small and have no anatomical features that distinguish dendrites from axons.

The thalamus is often called the “air traffic controller” of the brain because it

Muscles and glands are:

The ________ filters and relays sensory information to cerebral cortex.

A threshold stimulus is the

The ________ nervous system controls the skeletal muscles.

The insulating membrane oligodendrocytes construct around axon fibers is called the

The ________ nervous system is composed of the brain and spinal cord.

The ________ principle states that the size and speed of the action potential are independent of the stimulus strength.

Bipolar neurons have