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Cards In This Set
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Peripheral Nervous System (PNS)
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-Nervous system outsid the brain and spinal cord
-provides vital links to the body and outside world -nerves allow the CNS to receive info and intitae action |
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Sensory receptors
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Pick up stiumul from inside or outside the body
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Nerves
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Bundles of axons
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Ganglia
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Clusters of peripheral neuronal cell bodies
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Motor endings
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Aon terminals of motor neurons
-> innervate effectors (muscle fibers and glands) |
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Somatic body region
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Structures external to the ventral body cavit(ex: outer tube) skin, skeletal musculature, axial bones, and appendiucular bones and musscles
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Visceral body region
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Contains viscera within the ventral body cavity (ex:inner tube- digestive tube, lungs, heart, spleen, bladder, etc) as well as smooth muscle and glands throughout the body
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Somatic sensory
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Sensory innervation of outer tube (skin, trunk wall) and limbs
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Visceral sensory
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Sensory innervation of viscera
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Somatic motor (voluntary motor)
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Motor innervation of skeletal muscles of outer tube & limbs
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Visceral motor (autonomic nervous system)
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Involuntary motor innervation of the inner tube (smooth muscle, cardiac muscle, glands) some outer tube structures (arrector pilli muscles and sweat glands) and smooth muscle in blood vessels
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Image of functional Organization of PNS
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Somatic Division of the nervous system
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-general somatic senese
-proprioceptive senses -special somatic senses |
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General somatic sensory divison
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-touch
-pain -vibration -pressure -temperature |
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Proprioceptive senses of somatic sensory division
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-detect stretch in tendons, joint capsules and muscles
-body sense: position and movement of body in space |
