CSN Biology 223 Exam 5 All Possible Questions and Answers with complete solution
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Course
CSN Biology 223
Institution
CSN Biology 223
found in white columns; bundles of mostly myelinated axons; relay information in same direction -
tracts
generally innervates the posterior region of the body: deep muscles, skin, and structures of the upper
and lower limbs, and the trunk - dorsal ramus
a longitudinal groove on the posterior/do...
thin thread of fibrous tissue at end of conus medullaris - filum terminale
Fusion of the spinal meninges beyond sacral vertebra S2; anchors spinal cord to the coccyx - filum
terminale
Name the 2 enlargements of the spinal cord - cervical and lumbar enlargements
long ventral and dorsal roots that extend below conus medullaris + filum terminale - cauda equina
How many pairs of spinal nerves are there? - 31
Which nerves are named for inferior vertebra - cervical nerve
which nerves are named for superior vertebra - all other nerves
what segment are spinal nerves C1-C8? - cervical segment
, what segment are spinal nerves T1-T12 - thoracic segment
what segment are spinal nerves L1-L5? - lumbar segment
what segment are spinal nerves S1-S5? - sacral segment
what segment are spinal nerves Co1? - coccygeal segment
which spinal root contains axons of motor neurons? - ventral root
What kind of axons does the ventral root contain - motor neurons
what spinal root contains axons of sensory neurons - dorsal root
what kind of axons does the dorsal root contain - sensory neurons
what spinal root contains cell bodies of sensory neurons - dorsal root ganglion
what kid of axons does the dorsal root ganglion contain - cell bodies of sensory neurons
what 2 roots make up the spinal nerve - dorsal and ventral roots
what kind of nerves does the spinal nerve contain - sensory and motor
viral or bacterial infection of meninges - meningitis
name the 3 spinal meningeal layers - dura mater, arachnoid mater, pia mater
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