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.|
|Brain||That part of the central nervous system that includes all the higher nervous centers.|
|Spinal Cord||A major part of the central nervous system which conducts sensory and motor nerve impulses to and from the brain.|
|Sense Organs||Taste - buds in tongue, touch receptors in dermis, hearing - ear, eye - sight - part of peripharal nervous system.|
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