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10 Cards in this Set

  • Front
  • Back
the specialized cells that conduct impulses through the nervous system and contain 3 major parts-a cell body, dendrites, and an axon.
Neurons
have a distinctive shape, are protein molecules on the surfaces of dendrites and cell bodies
Receptors
they branch out from the cell body and look like leafless branches of a tree & r the primary receivers of signals from other neurons
Dendrites
contains the nucleus and carries out the metabolic or life sustaining functions of a neuron
Cell Body
the slender tail like extension of the neuron that transmits signals to the dendrites or cell body of other neurons and to muscles, glands and other parts
axon
the axon terminals are separated from the receiving neurons by these tiny fluid filled gaps
synaptic clefts
a chemical substance that is released into the synaptic cleft from the axon terminal. it binds to appropriate receptor sites on the dendrites or cell body influencing the cell either to fire or not to fire
Neurotransmitters
Its composed of the brain and the spinal cord and the peripheral nervous system
Central nervous system
it connects the central nervous system to all other parts of the body
Peripheral nervous system
everything which we are aware of at any given time our thoughts, feelins,sensations and perceptions of the external environment
Consciousness