spinal cord and spinal nerves Flashcards

(36 cards)

1
Q

the osinal cords extends from the

A

formaen magnum till l2

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2
Q

how amny spinal nerves do we have

A

31

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3
Q

the spinal nerves are motor or snesory

A

mixed

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4
Q

the two enlargements of teh psinal cord

A

cervical adn lumbar enlargement

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5
Q

the divisons of teh spinal nerve s

A

8 cervicak
12 thoracic
5 lumbar and scarel
1 coccyheal

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6
Q

the spinal cord terminates as

A

conus medullaris

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7
Q

nerves taht extend inferiorly from the conus medullaris are called

A

cauda equina

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8
Q

the meninges of teh spinal cord

A

dura pia and arachmnoid

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9
Q

the dura matetr of te spinal cord extends from the

A

level of the foramen magnum tikll S2

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10
Q

epidural space location

A

between the dura matter and the wall of teh vertebral canal ( fat fill)

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11
Q

epidural purposes

A

aenesthetics injecton

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12
Q

epidural is given at teh

A

l3 l4 verebtebra

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13
Q

the subdural spce contains

A

serous fluid

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14
Q

subarachnoid space is between the

A

pia and arachnoid matter

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15
Q

the subarachnoid space s filled wity

A

csf

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16
Q

the lumbar puncture is given

A

above the spinous process of l4

17
Q

the gray matter is divded ibnto three horns

A

anterior lateral posterior

18
Q

the lateral grey horn is only seen from

19
Q

whote matter is divided into three columns

A

abnterior posterior lateral
contains sensory and motor tracts

20
Q

the central canal extends through

A

the entire spinal cord

21
Q

what fluid is present n the central canal

22
Q

the central canal is continuos with the

A

fourth ventricle

23
Q

the descending tracts carry info

A

from the brain to the periphery

24
Q

the descending tracts are divided into

A

direct (pyramidal) indirect ( extrapyrimadal)

25
direct descednig tract has to dow with the
responsible of voluntary movement
26
indirect descending tract has t o do with
involuntary control and autonomic control ( balance , posture , muscle tone ) body movement coordination
27
the ascending sensory tract relays info from to
froom teh periphery to the brain
28
the ascendong tract is divded into
exteroceptive and propioceptive
29
exteroceptive has to do with
sensation outside the body temp , touch, pain
30
propioceptive has t o dow with
inside the bofy , muscles, joint , organs
31
each sinal nerve is formed from
2 roots
32
the two roots of each spinal nerve
dorsal and ventral
33
dorsal root is
sensory root and ganglia
34
ventral root is
motor root
35
each root is formed from a set of
rootlets atatched to teh spinal cord
36
dermatomes
an area of the skin that provides teh cns with sensory info via one pair of spinal nerves overlap