Human Body: Organ Systems: Nervous System |Central Nervous
System||The portion of the vertebrate nervous system consisting
of the brain and spinal cord.| |Peripheral Nervous System||The
sensory and motor neurons that connect the central nervous
system to the rest of the body.| |Autonomic Nervous System||This
nervous system provides involuntary control over smooth muscle,
cardiac muscle, and glands.| |Somatic Nervous System||The
division of the peripheral nervous system that controls the
body's skeletal muscles. Also called the skeletal nervous
system.| |Synapse||The junction between two neurons (axon-to-
dendrite) or between a neuron and a muscle.| |Dendrites||The
bushy, branching extensions of a neuron that receive messages
and conduct impulses toward the cell body.| |Cell Body||Contains
the nucleus, where most of the molecules the neuron needs to
survive and function is manufactured.| |Axons||Long, thin fibers
that transmit signals away from the neuron cell body to other
neurons or to muscles and glands.| |B