Spinal Cord & Spinal Meninges
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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| white matter | nerve fibers, axons
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| gray matter | neurons
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| conus medullaris | end of spinal cord (usually between LV1 and LV2)
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| dorsal root ganglia | collection of neuronal cell bodies outside of CNS
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| dorsal root | SENSORY; has rootlets
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| ventral root | MOTOR
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| spinal nerve | MIXED; divides into ventral primary ramus and dorsal ramus
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| these are caudal to the conus medullaris | ventral and dorsal roots
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| all plexuses are made up of... | ventral primary rami
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| innervate all muscles of upper limb and skin of upper | ventral primary ramus
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| cauda equina | ventral and dorsal roots caudal to the conus medullaris
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| epidural space | space between dura and bone (vertebra)
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| contains FAT and VENOUS blood vessels | epidural space
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| this is caudally continuous to the level of sacral vertebra 2 | dura mater
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| beyond SV2 this is continuous as the coccygeal ligament | dura mater
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| subdural space | space between dura and arachnoid
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| this contains cerebral spinal fluid (CSF) | subarachnoid space
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| dermatome | area of skin innervated by 1 spinal nerve
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| shingles follow this pattern | dermatomal
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| the brain does not have this, only found in spine | epidural space
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| filum terminale pia | extends to S2 to dura/arachnoid
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Created by:
afogel
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