definitions
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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Nervous System | a complex, highly organized system that coordinates all the activities of the body
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Neuron | the basic structural unit of the nervous system or nerve cell
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Dendrites | nerve fibers (carries impulses towards the cell body)
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Axon | a single nerve fiber (carries impulses away from the cell body)
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Myelin Sheath | a lipid fat covering of an axon, increases the rate of impulse transmission and insulates and maintains the axon
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Synapse | spaces between the axon and the dendrites
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Neurotransmitters | located at the end of each axon allow the nerve impulses to pass from one neuron to another
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Nerves | a combination of many nerve fibers located outside the brain and spinal cord
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Afferent | sensory, nerves carry messages from all parts of the body to the brain and spinal cord
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Efferent | motor, nerves carry messages from the brain and spinal cord to the muscles and glands
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Associative or Internunical | carry both sensory and motor messages
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Central Nervous System | consists of the brain and spinal cord
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Peripheral Nervous System | consists of the nerves
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Autonomic Nervous System | division of the peripheral nervous system contols involuntary functions
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Created by:
kberwald
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