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20 Cards in this Set
- Front
- Back
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helps to keep controlled conditions within limits that maintain health and helps to maintain homeostasis.
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nervous system
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responsible for all our behaviors, memories, and movements
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nervous system
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• Controls and integrates all body activities within limits that maintain life
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nervous system
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three basic functions of the nervous system
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sensory, interpreting and remembering changes, reacting
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Major Structures of the Nervous System
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• Brain, cranial nerves, spinal cord, spinal nerves, ganglia, enteric plexuses and sensory receptors
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a bundle of hundreds or thousands of axons
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nerve
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• The spinal cord connects to the brain through the
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foramen magnum
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, located outside the brain and spinal cord, are small masses of nervous tissue, containing primarily cell bodies of neurons.
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ganglia
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help regulate the digestive system.
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enteric plexuses
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analyze the sensory information, store some aspects, and make decisions regarding appropriate behaviors
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integrative function
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help regulate the digestive system
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enteric plexuses
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to analyze the sensory information, store some aspects, and make decisions regarding appropriate behaviors
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integrative function
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respond to stimuli by initiating action.
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the motor function
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consists of the brain and spinal cord
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CNS
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consists of cranial and spinal nerves that contain both sensory and motor fibers
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PNS
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– connects CNS to muscles, glands & all sensory receptors
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PNS
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– neurons from cutaneous and special sensory receptors to the CNS
– motor neurons to skeletal muscle tissue |
Somatic Nervous System
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– sensory neurons from visceral organs to CNS
– motor neurons to smooth & cardiac muscle and glands |
autonomic nervous system
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– involuntary sensory & motor neurons control GI tract
– neurons function independently of ANS & CNS |
enteric nervous system
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consists of neurons in enteric plexuses that extend the length of the GI tract.
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enteric nervous system
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