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33 Cards in this Set
- Front
- Back
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Types of neurons
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Unipolar, pseudounipolar, multipolar
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Nucleus
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collection of cell bodies in CNS
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Ganglion
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collection of cell bodies in PNS
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Tracts
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Bundles of axons in CNS
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Roots, rami, nerves
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Bundles of axons in PNS
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Gray matter
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nuclei, cell bodies
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White matter
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Rest of spinal cord, axons, white(myelin)
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Afferent
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Sensory, going toward spinal cord
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Efferent
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Motor, going away from spinal cord
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Special senses
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Sight, hearing, smell, touch
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General sense
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Everything else other then special senses, sensation from skin, muscle
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Somatic
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Skeletal muscle, voluntary
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Visceral
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Smooth muscle, cardiac muscle, glands, arrector pili
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GSE
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General somatic efferent, skeletal
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GVE
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General visceral efferent, control viscera
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GSA
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General somatic afferent, sensation from skin
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GVA
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General visceral afferent, sensation from viscera
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How many spinal nerves are there
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31
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Name spinal nerves
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12 thoracic, 8 cervical, 5 lumbar, 5 sacral, 1 coccygeal
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Dorsal root
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Sensory only
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Dorsal ramus
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Sensory + motor
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Ventral root
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Motor only
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Ventral ramus
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Sensory+ motor
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Dorsal root ganglion
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unipolar neurons
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Which functional components are contained in any given spinal nerve
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all 4 - GSA, GVA, GSE, GVE
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GSE
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Innervate skeletal muscle, cell bodies located in spinal cord, cell bodies are multipolar
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GSA
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innervate skin, pseudounipolar neurons, cell bodies in PNS
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GSA + GVA, GSE+GVE
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only ar certain levels - T1-L2, S2-S4
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Which functional components does dorsal root have?
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GSA (GVA only T1-L2, S2-S4)
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Which functional components does Ventral root have
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GSE
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Which functional components does spinal nerve have
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GSA, GSE, GVA, GVE
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What functional components does ventral and dorsal rami have at level T1-L2
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GSA, GVE, GSE, GVA
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What kind of deficit in spinal injury
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motor+sensory
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