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15 terms

Psychology

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Central Nervous System
Processes, interprets, and stores information; issues orders to muscles, glands, and organs
Sensory Nerves
Carry messages to spinal cord
Motor Nerves
Carry orders from CNS to body
Dendrite
Little antennas that receive messages from nervous system
Axon terminal
Ends of axons resembling branches
Myelin Sheath
Fatty insulation that may surround the axon of a neuron
Synapse
Site where nerve impulse is transmitted from one nerve cell to another
Action Potential
Electrical current or impulse
Neurotransmitter
Chemical substance
Receptor Siles
Special molecules in membrane
Hormones
Substance secreted by organs called glands, that affect functioning of other organs
Nerve
Bundle of fibers
Somatic Nervous System
Controls skeletal muscles
Sympathetic Nervous System
Mobilizes body for action, energy input
Parasympathetic N. S.
Conserves energy, maintain quiet state