Involuntary functions of the internal organs.
Is not learned.
Is not under conscious control.
Is a sudden, involuntary movement of muscles in response to a stimulus.
All of the above
Is not linked to the central nervous system.
Provides pathways to and from the central nervous system.
Consists of the cerebellum and spinal cord.
Is composed of only motor neurons.
Bind to membrane receptor proteins on the membrane of the postsynaptic neuron.
Become an enzyme in the space between the neurons.
Cover the membrane of the axon.
Cause the cell body of the postsynaptic neuron to enlarge.
To the brain.
To the spinal cord.
From the spinal cord to the brain.
From the central nervous system to a muscle or gland.