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Anatomy 🧠 > Spinal Cord > Flashcards

Spinal Cord Flashcards

1
Q

Spinal cord begin at ?

A

Upper border of atlas vertebra

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2
Q

Spinal cord is β€”β€”β€”β€”- shape , β€”β€”β€”-cm length & β€”β€”β€”β€”gram weight ?

A

Cylindrical , 45 cm , 30 gram

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3
Q

Spinal cord end at disc between β€”β€”-& β€”β€”β€”- β€”β€”β€”β€”- vertebrae?

A

1&2 lumbar

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4
Q

Lower spinal cord conical shape is called ?

A

Conus medullaris

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5
Q

Lower tapering end β€”β€”β€”β€”β€”- descends to attach to back of β€”β€”-?

A

Filum terminale , coccyx

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6
Q

Lower β€”β€”-& β€”β€” nerve descends in subarachnoid space to reach foramina forming β€”β€”β€”β€”β€”β€”β€”?

A

Lumbar & sacral nerves. , forming cauda equina

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7
Q

Cervical enlargement extend from β€”β€”β€”toβ€”β€”- ?

A

3 cervical to 2 thoracic

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8
Q

Nerves arising from cervical enlargement β€”β€”β€”β€”β€”-of β€”β€”limb ?

A

Brachial plexus nerves of upper limb

Ψ­ΨͺΩ‰ Ω„Ωˆ Ψ¬Ψ§ Ψ³ΩˆΨ§Ω„ Ψ§Ψ΄ Ψ³Ψ¨Ψ¨ enlargment Ψ±Ψ§Ψ­ ΩŠΩƒΩˆΩ† نفس جواب

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9
Q

Lumbar enlargement extend from β€”β€”β€”-toβ€”β€”β€”- ?

A

1 lumbar to 3 sacral

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10
Q

Nerves arising from lumbar enlargement β€”β€”β€”β€”&β€”β€”β€”-of β€”β€”limb ?

A

Ψ­ΨͺΩ‰ Ω„Ωˆ Ψ¬Ψ§ Ψ³ΩˆΨ§Ω„ Ψ§Ψ΄ Ψ³Ψ¨Ψ¨ enlargment Ψ±Ψ§Ψ­ ΩŠΩƒΩˆΩ† نفس جواب
Lumbar & sacral plexus nerves of lower limb

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11
Q

6 longitudinal sulci in spinal cord ?

A

1- anterior median fissure
2- posterior median sulcus
3- anterolateral sulci Rt & Lt
4- posterolateral sulci Rt &Lt

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12
Q

anterior median fissure of spinal cord lodgesβ€”β€”β€”β€”β€”β€” artery ?

A

anterior spinal

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13
Q

anterolateral sulci Rt & Lt & posterolateral sulci Rt &Lt. are for β€”β€”&β€”β€”β€”- of spinal nerves ?

A

Ventral & dorsal roots

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14
Q

Spinal cord covering ?

A
  • dura mater
  • arachnoid mater
  • pia mater
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15
Q

Dura of spinal cord has β€”β€”β€” layer ?

A

One layer

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16
Q

Dura & arachnoid mater of spinal cord end at level β€”β€”?

A

S2

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17
Q

Spinal cord is held in place Ψ§Ψ΄ Ω…Ψ«Ψ¨ΨͺΩ‡ ?

A
  • filum terminale & denticulate ligament
18
Q

Pia mater of spinal cord end at level β€”β€” & completes ΨͺΩƒΩ…Ω„ as ?

A

L1 , filum terminale

19
Q

Epidural space is between?

A

Vertebrae & dura

20
Q

Subdural space is between ?

A

Dura & arachnoid

21
Q

Subarachnoid space is between?

A

Pia & arachnoid contain CSF

22
Q

Extension of spinal pia mater is between β€”β€”&β€”β€”- roots they attach to β€”β€”β€”?

A

Sensory & motor , dura

23
Q

Lumbar puncture between β€”β€”β€”β€”β€” why is it used (2) ?

A

L2,3
- CSF sample
- inject anesthetic

24
Q

Spinal Motor root attached to β€”β€”β€”β€”β€”β€”β€”- ?

A

Anterolateral sulcus

25
Q

Spinal sensory root attached to β€”β€”β€”β€”β€”β€”β€”- ?

A

Posterolateral sulcus

26
Q

Motor & sensory root pierce β€”β€”β€”-& fuse at β€”β€”β€”β€”β€”β€”β€”β€” to form = β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”-?

A

Dura mater , fuse intervertebral foramen to form = spinal nerve trunk

27
Q

Spinal nerve trunk divides into ? (2)

A
  • anterior primary ramus
  • posterior primary ramus
28
Q

Internal structure of spinal cord (3) ?

A

1) central canal
2) gray matter
3) white matter

29
Q

Central canal of spinal cord is lined byβ€”β€”β€”β€”β€” & contain β€”β€”β€”?

A

Ependyma & contain CSF

30
Q

Gary mater of spinal cord is ?

A

H-shape :
- 2 ventral horns (motor nuclei )
- 2 dorsal horns (sensory nuclei )
- 2 lateral horns (thoracic region. Sympathetic nuclei )

31
Q

White matter of Spinal cord surrounds β€”β€” forms β€”β€”β€”β€”- & divide into?

A

Gary matter , long ascending & descending tract , 3 funiculi (anterior-lateral -posterior)

32
Q

Blood supply of spine ?

A

Anterior spinal artery
Posterior spinal artery
Segmental spinal artery

33
Q

Anterior spinal artery formed by union β€”β€”β€”β€”β€”β€”-?

A

2 arteries from vertebral A inside skull

34
Q

Anterior spinal artery descends β€”β€”β€”β€”β€”β€”-?

A

Within anterior median fissure ( anterior surface of spine )

35
Q

Anterior spinal artery supply β€”β€”β€”β€”β€”β€”-?

A

Anterior 2/3 old spinal cord

36
Q

Posterior spinal arteries arise ?

A

Either
Directly : form vertebral A inside skull
Indirectly : from posterior inferior cerebral arteries PICA

37
Q

Posterior spinal arteries descendsβ€”β€”β€”β€”- surface of spine ?

A

Posterior

38
Q

Posterior spinal arteries supplies ?

A

Posterior 1/3 of spinal cord

39
Q

Segmental spinal arteries branches of ?

A

Arteries outside the vertebral column

40
Q

Each Segmental spinal artery give rise to ?

A

Anterior & posterior radicular A accompanies anterior & posterior nerve to spinal cord

Anatomy 🧠 (9 decks)

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