Spinal Anatomy Flashcards Preview

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Flashcards in Spinal Anatomy Deck (25)
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1
Q

Spinal arteries derived from which branches of subclavian arteries?

A

Vertebral aa.

Deep cervical aa.

2
Q

Spinal arteries derived from which branches of aorta?

A

Intercostal aa.

Lumbar aa.

3
Q

Cervical enlargement extends from spinal level ____ to ____ with greatest width at ___

A

C3
T2
C6

4
Q

Lumbar enlargement extends from spinal level ____ to ____ with greatest width at ___

A

L1
S3
S1

5
Q

Intermediolateral cell columns are found at levels ____

A

C8 - L2

6
Q

Levels at which presence of posterointermediate sulci

A

above T6

7
Q

Name the spinal level:

Large lateral corticospinal tract

A

C1/C2

8
Q

Name the spinal level:

Distinctive spinal accessory nucleus

A

C1/C2

9
Q

Name the spinal level:

Large lateral group of ventral horn motor neurons

A

C8

10
Q

Name the spinal level:

Dorsal group of ventral horn motor neurons that innervate intrinsic hand muscles

A

C8

11
Q

Name the spinal level:

Ventral group of ventral horn motor neurons that innervate upper limb muscles w/ origins on the trunk

A

C8

12
Q

Name the spinal level:

Beginnings of nucleus dorsalis of Clarke

A

C8

13
Q

Nucleus dorsalis of Clarke extends from ___ to ___ and is the origin of the ____ tract.

A

C8
L3/4
spinocerebellar tract

14
Q

Name the spinal level:

Round cylindrical configuration

A

T6/T7

15
Q

Name the spinal level:

Gray matter is relatively sparse

A

T6/T7

16
Q

Name the spinal level:

Complete disappearance of dorsal intermediate sulcus

A

T6/T7

17
Q

Intermediolateral cell column contain ___

A

Pre-ganglionic sympathetic neurons

18
Q

Name the spinal level:

Large anterior gray horns contain lateral and medial motor groups

A

L2/3

19
Q

Name the spinal level:

Flattened cylinder shape

A

Cervical levels

20
Q

Name the spinal level:

Dominance of gray matter

A

S2

21
Q

Name the spinal level:

Large lateral group of motorneurons

A

S2

22
Q

Name the spinal level:

Dorsal group of motorneurons innervate lower leg meuscles and intrinsic foot muscles

A

S2

23
Q

Name the spinal level:

Ventral group of motorneurons innervate perineal muscles

A

S2

24
Q

Name the spinal level:

Contains Onuf’s nucleus

A

S2

25
Q

Name the spinal level:

Absense of spinocerebellar tracts

A

S2