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Block 5 module 2 > Spinal Cord > Flashcards

Spinal Cord Flashcards

1
Q

The sc is derived from the

A

Caudal part of the neural tube

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2
Q

The sc extends from the _________ to the lower border of the ________

A

Foramen magnum; first lumbar vertebra

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3
Q

The sc lies within the _________

A

Subarachnoid space

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4
Q

2 flattened bands of pial tissue that attach to the spinal dura

A

Denticulate ligaments

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5
Q

Pial filament extending from the conus medullaris to the end of the dural sac

A

Filum terminale

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6
Q

Provide the strongest anchorage and fixation of the spinal cord to the vertebral canal

A

Spinal nerve roots

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7
Q

31 pairs of nerves

A

8 cervical
12 T
5 L&S
1 C

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8
Q

1st cervical nerve passess between

A

atlas and skull

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9
Q

2nd cervical nerve passess between

A

atlas and axis

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10
Q

spinal nerves except C1 exit the vertebral canal via

A

intervertebral or sacral foramina

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11
Q

sensory input from skin, muscle bone and joints to the CNS

A

general somatic afferent fibers

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12
Q

sensory input from visceral organs to the CNS

A

general visceral afferent fibers

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13
Q

motor output from ventral horn motor neurons to skeletal muscle

A

general somatic efferent fibers

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14
Q

motor output from intermediolateral cell column neurons to glands, smooth muscle and visceral organs

A

general visceral efferent fibers

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15
Q

the GSE fibers convey motor output from ______ to _____

A

ventral horn motor neurons to skeletal muscle

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16
Q

the GVE fibers convey motor output from _______ to _____

A

intermediolateral cell column neurons to glands, smooth muscle and visceral organs

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17
Q

the spinal nerve is formed by the union of _____ and _____ within the ________

A

dorsal and ventral roots within the intervertebral foramen

18
Q

the dorsal root ganglion contains _________ which transmit sensory input from the periphery to the spinal cords via the _____-

A

pseudounipolar neurons; dorsal roots

19
Q

consists of lumbosacral nerve reoots that descend from the spinal cord through the subarachnoid space

A

cauda equina

20
Q

innervates the skin and muscles of the back

A

dorsal primary ramus

21
Q

innervates the ventral lateral muscles and skin of the trunk, extremities and visceral organs

A

ventral primary ramus

22
Q

innervates the meninges and vertebral column

A

meningeal ramus

23
Q

the gray communicating rami contains ___________

A

unmyelinated postganglionic sympathetic fibers

24
Q

the white communicating rami contains _______

A

myelinated preganglionic sympathetic fibers

25
Q

the white communicating rami are found only in

A

thoracolumbar segments of sc

26
Q

deep ventral midline groove underlying the ventral spinal artery

A

ventral median fissure

27
Q

shallow groove from which the ventral rootlets emerge

A

ventral lateral sulcus

28
Q

shallow groove into which the dorsal rootlets enter

A

dorsal lateral sulcus

29
Q

shallow groove that is continuous with the dorsal intermediate septum

A

dorsal intermediate sulcus

30
Q

the dorsal intermediate sulcus separates the _____ from the _______

A

fasciculus gracilis and fasciculus cuneatus

31
Q

the dorsal horn receives and processes

A

sensory input

32
Q

consists of bundles of myelinated fibers that surround the central gray matter

A

white matter

33
Q

dorsal funiculus is subdivided above T6 into 2 fasciculi

A

fasciculus gracilis

fasciculus cuneatus

34
Q

the ventral white commisure contains

A

decussating spinothalamic tracts

35
Q

ankle jerk

A

s1: gastrocnemius muscle

36
Q

knee jerk

A

L2-l4

37
Q

biceps jerk

A

c5-c6

38
Q

triceps

A

c7-c8

39
Q

monosynaptic and ipsilateral muscle stretch reflex

A

myotatic reflex

40
Q

the nucleus dorsalis of CLarke is very prominent at

A

L1 and L2

Block 5 module 2 (5 decks)

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