The organs of _______ _____ as a whole include the brain and spinal cord.
Nervous system
Because the brain and spinal cord occupy a midline or central location in the body, they are together called:
The central nervous system or CNS
The usual designation for the nerves of the body is the ______ ________ ______.
peripheral nervous system or PNS
a subdivision of the peripheal nervous system, called the _______ ______ _____ consists of structures that regulate the body's autonomic or involountary functions
autonomic nervous system or ANS
The two types of cell found in the nervous system are called _____ and _____, whuch are specialized connective tissue cells.
neurons (or nerve cells)
Glia
Each neuron consists of three parts:
cell body
dendrites
axon
sensory neurons are also called:
afferent neurons
Motor neurons are called
efferent neurons
Interneurons are sometimes called:
central or connecting neurons
______ _____ transmit impulses to the spinal cord from all parts of the body
sensory neurons
______ _______ transmit impulses away from the brain and spinal cord
Motor neurons
_______ conduct impulses from sensory neurons to motor nuerons.
Interneurons
The _____ ______ is an enlarged, upward extension of the spinal cord