Spinal Cord Structure and Function Flashcards

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1
Q

Middle meninx; web-like

A

arachnoid mater

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2
Q

Tough, outer meninx

A

dura mater

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3
Q

Space filled with adipose tissue

A

epidural space

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4
Q

thin meninx intimate with spinal cord

A

pia mater

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5
Q

contains cerebrospinal fluid

A

subarachnoid space

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6
Q

extension of pia mater attaching to dura

A

denticulate ligaments

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7
Q

contains cell bodies and unmyelinated processes

A

grey matter

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8
Q

shallow groove on dorsal side of spinal cord

A

posterior medial sulcus

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9
Q

connects right and left halves of grey matter in spinal cord

A

gray commissure

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10
Q

sensory branch of spinal nerve entering spinal cord

A

posterior root ganglion

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11
Q

tapered end of spinal cord

A

conus medullaris

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12
Q

motor branch of spinal nerve exiting spinal corc

A

anterior root

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13
Q

contains sensory neuron cell bodies

A

posterior root ganglion

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14
Q

collection of spinal nerves that arise from inferior end of spinal cord

A

cauda equina

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15
Q

contains myelinated axons

A

white matter

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16
Q

contains somatic motor neuron cell bodies

A

anterior gray horn

17
Q

space in centre of spinal cord that contains cerebrospinal fluid

A

central canal

18
Q

bulge in spinal cord containing cell bodies of motor neurons supplying upper limb

A

cervical enlargement

19
Q

wide, deep groove on ventral side of spinal cord

A

anterior median sulcus

20
Q

extension of the pia mater that attaches to the coccyx

A

filam terminale ligaments

21
Q

bulge in the spinal cord from T9-T12

A

lumbar enlargement

22
Q

order of structures through which sensory impulses pass as they enter the spinal cord and travel toward the brain (1-5)

A
  1. spinal nerve
  2. posterior root ganglion
  3. posterior root
  4. posterior gray horn
  5. white column
23
Q

order of structures through which motor impulses pass as they descend from the brain and leave the spinal cord (1-4)

A
  1. white column
  2. anterior (ventral) gray horn
  3. anterior (ventral) root
  4. spinal nerve