Spinal Nerves Unit 5 Flashcards

1
Q

Anterior (ventral or motor) roots

A

efferent axons from cell bodies located in the anterior (ventral) or lateral (if present) horns

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2
Q

preganglionic autonomic

A

sym T1-L2

para S2-S4

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3
Q

. Posterior (dorsal or sensory) roots

A

located in the posterior root (dorsal root) (spinal

ganglion

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4
Q

Spinal ganglia are typically located…

A

inside or just medial to the intervertebral foramen, beyond the dura mater

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5
Q

Spinal ganglia exceptions

A

C1 and C2 ganglia
sacral ganglia located within vertebral canal
coccygeal located inside dura mater

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6
Q

cauda equina composed of what Spinal ganglia

A

sacral & coccygeal ganglia

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7
Q

cell bodies for these fibers sympathetic chain ganglia

A

postganglionic sympathetic fibers

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8
Q

Mixed spinal nerves give off …

A

ascending, descending and transverse branches

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9
Q

Mixed spinal nerve

A

Provide somatosensory and sympathetic supply to the dura, blood vessels, periosteum,
ligaments and intervertebral discs in the anterior and lateral portions of the canal

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10
Q

Posterior (dorsal) rami are smaller than anterior except in …

A

except C1, S4 and S5

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