Ch. 14 - Spinal Cord & Spinal Nerves
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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| show | From foramen magnum, through vertebral canal, to L1
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| show | Tapering inferior end of spinal cord at L1
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| show | Cervical enlargement, lumbar enlargement. Larger because they contain more neurons
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| How many pairs of spinal nerves are there? | show 🗑
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| show | Spinal nerves inferior to conus medullaris (L2-L5, S1-S5, Co1)
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| show | Thin strand of pia mater (CT) attaching conus medullaris to coccyx
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| show | Pia mater - adheres to spinal cord. Arachnoid mater - weblike layer. Subarachnoid space - CSF flows through. Subdural space - between dura and arachnoid. Epidural space - between dura and vertebra, contains adipose & areolar CT, & blood vessels
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| show | Anterior horns, lateral horns (both house motor nuclei), posterior horns (house sensory nuclei), gray commissure (surrounds central canal)
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| show | Posterior funiculus (sensory tracts), lateral funiculus (sensory & motor tracts), anterior funiculus (sensory & motor tracts)
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| show | Sensory tracts - ascending (toward brain). Motor tracts - descending (toward effectors)
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| show | Axons - located in spinal cord tracts. Cell bodies - located in ganglia, gray horns, & brain gray matter
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| show | Anterior root - axons of motor neurons whose somas are in anterior/lateral horns. Posterior root - axons of sensory neurons whose somas are in posterior root ganglion
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| show | Innervates muscles & skin of back
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| Anterior ramus | show 🗑
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| show | Extend between spinal nerve and sympathetic trunk ganglion
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| Dermatome | show 🗑
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| Intercostal nerves | show 🗑
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| show | Anterior rami of C1-C4. Innervates head, neck, shoulders
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| Phrenic nerve is created by | show 🗑
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| Brachial plexus | show 🗑
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| Terminal branches | show 🗑
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| show | Anterior rami of L1-L4. Divided into anterior and posterior divisions
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| The femoral nerve is the main nerve of the | show 🗑
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| The obturator nerve in the main nerve of the | show 🗑
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| Sacral plexus | show 🗑
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| What is the largest & longest nerve in the body? | show 🗑
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| show | Anterior sciatic nerve
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| The common fibular nerve is formed from the | show 🗑
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| Stretch reflex | show 🗑
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| Golgi tendon reflex | show 🗑
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| show | Muscles contract to withdraw a body part away from a painful stimulus
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| show | Occurs in conjunction with withdrawal reflex
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| Fasciculi (aka tract) | show 🗑
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Created by:
catfreak711