Vertebral foramen Flashcards

1
Q

Identify all segmental arteries

A

vertebral, ascending cervical, deep cervical, superior (highest) intercostal, posterior intercostal, subcostal, lumbar, iliolumbar, lateral sacral and median (middle) sacral

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2
Q

what are the segmental arteries of the cervical spine?

A

vertebral artery, ascending cervical artery and deep cervical artery

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3
Q

What are the segmental arteries of the thoracic spine?

A

the deep cervical artery, superior intercostal artery, posterior intercostal artery and subcostal artery

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4
Q

What are the segmental arteries of the lumbar spine?

A

lumber arteries, iliolumbar artery, lateral sacral artery and median sacral artery

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5
Q

what are the segmental arteries of the fifth lumbar vertebra?

A

iliolumbar artery, lateral sacral artery and median sacral artery

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6
Q

What are they segmental arteries of the sacrum?

A

iliolumbar artery, lateral sacral artery and median sacral artery

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7
Q

What segmental levels are supplied by the vertebral artery?

A

C1-C6

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8
Q

What segmental levels are supplied by the ascending cervical artery?

A

C1-C6

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9
Q

What segmental levels are supplied by the deep cervical artery?

A

C7-T1

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10
Q

What segmental levels are supplied by the superior (highest) intercostal artery?

A

T1, T2

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11
Q

What segmental levels are supplied by the posterior intercostal artery?

A

T3-T11

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12
Q

what segmental level is supplied by the subcostal artery?

A

T12

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13
Q

What segmental levels are supplied by the lumbar artery?

A

L1-L4

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14
Q

What segmental levels are supplied by the median (middle) sacral artery?

A

L5, S1-S5, and coccyx

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15
Q

What segmental levels are supplied by the iliolumbar artery?

A

L5, S1-S5 and coccyx

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16
Q

What segmental levels are supplied by the lateral sacral artery?

A

L5, S1-S5 and coccyx

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17
Q

Which vertebrae has the greatest number of segmental arteries associated with it?

A

L5

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18
Q

What are the segmental arteries for L5?

A

iliolumbar artery, median sacral artery and lateral sacral artery

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19
Q

What branch of the segmental artery supplies the vertebra and the paravertebral region?

A

dorsospinal artery

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20
Q

Which artery is primarily observed in the distal part of the intervertebral foramen?

A

spinal artery

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21
Q

What are the branches of the spinal artery?

A

osseous arteries, anterior spinal canal artery, posterior spinal canal artery, anterior medullary feeder artery, posterior medullary feeder artery, anterior radicular artery, posterior radicular artery

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22
Q

Which branches of the spinal artery supply the contents of the epidural space?

A

osseous arteries, anterior spinal canal artery, posterior spinal canal artery

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23
Q

what arteries are observed in the epidural space near the posterior longitudinal ligament?

A

anterior spinal canal artery and plexus

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24
Q

What arteries are observed near the ligamentum flavum?

A

Posterior spinal artery and plexus

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25
Q

Which branches of the spinal artery supply the contents of the subarachnoid space?

A

anterior radicular artery, posterior radicular artery, anterior medullary feeder artery, posterior medullary feeder artery

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26
Q

Which vessel will supply the ventral/anterior nerve rootlet and nerve root?

A

anterior radicular artery

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27
Q

Which vessel will supply the dorsal/posterior nerve rootlets, nerve root and nerve root ganglion?

A

posterior radicular artery

28
Q

What is the name given to the artery that lies in front of the spinal cord along its length?

A

anterior spinal artery

29
Q

The anterior spinal artery is a branch of which artery?

A

the vertebral artery

30
Q

Is the anterior spinal artery a single, continuous artery along the spinal cord?

A

NO

31
Q

As the anterior spinal artery continues along the spinal cord, which arteries unite along its length to give the appearance of a single continuous vessel?

A

anterior medullary feeder arteries

32
Q

The posterior spinal artery is a branch of which artery?

A

the posterior inferior cerebellar artery

33
Q

What is the position of the posterior spinal artery relative to the spinal cord?

A

lies in the posterolateral sulcus along the spinal cord

34
Q

is the posterior spinal artery a single, continuous artery along the spinal cord?

A

no

35
Q

as the posterior spinal artery along the spinal cord, which arteries unite along its length to give the appearance of a single continuous artery?

A

posterior medullary feeder arteries

36
Q

What forms the arterial vasa corona above C3?

A

right and left anterior spinal arteries, right and left posterior spinal arteries, and 4 communicating arteries

37
Q

What forms the arterial vasa corona below C6?

A

a median anterior spinal artery, right and left posterior spinal arteries, and 3 communicating arteries

38
Q

What is the generic name given to arteries that penetrate the spinal cord?

A

intramedullary arteries

39
Q

What are the intramedullary branches of the arterial vasa corona?

A

pial perforating arteries and central/ ventral/ sulcal perforating arteries

40
Q

What artery gives off the ventral/central/sulcal perforating arteries?

A

the anterior spinal artery

41
Q

What arterial vasa corona branches supply gray matter and most of the spinal cord?

A

ventral/central/sulcal perforating arteries

42
Q

What intramedullary branches supply about one third of the spinal cord

A

pial perforating arteries

43
Q

What is the source for pial perforating arteries?

A

pial plexus

44
Q

What arteries form the pial plexus?

A

posterior spinal arteries and the communicating arteries

45
Q

What arteries are responsible for supplementing the arterial vasa corona along the cord?

A

anterior medullary feeders and posterior medullary feeders

46
Q

What vessels drain the spinal cord?

A

pial veins

47
Q

What will pial veins drain into?

A

venous vasa corona

48
Q

Which vessels form the venous vasa corona?

A

right and left anterior longitudinal veins, right and left posterior longitudinal veins, and 4 communicating veins

49
Q

Which vessels will drain the venous vasa corona?

A

anterior medullary veins, posterior medullary veins

50
Q

Which vessels will drain the ventral/anterior nerve roots?

A

anterior radicular veins

51
Q

which vessels will drain the dorsal/posterior nerve roots?

A

posterior radicular veins

52
Q

What vessel will drain the the dorsal/posterior nerve root ganglion?

A

posterior radicular vein

53
Q

What veins will lie in the subarachnoid space?

A

pial veins, venous vasa corona, anterior longitudinal veins, posterior longitudinal veins, communicating veins, anterior medullary veins, posterior medullary veins, anterior radicular veins, posterior radicular veins

54
Q

What veins are observed in the epidural space near the posterior longitudinal ligament?

A

anterior internal vertebral venous plexus, basivertebral vein

55
Q

what veins are observed in the epidural space near the ligamentum flavum?

A

posterior internal vertebral venous plexus

56
Q

what venous vessels are identified in the intervertebral foramen?

A

intervertebral veins

57
Q

What is the name given to the fluid in the epidural space

A

interstitial fluid

58
Q

What are the vascular contents of the epidural space?

A
  • anterior and posterior spinal canal artery and plexus
  • anterior and posterior internal vertebral venous plexus
  • basivertebral vein
59
Q

what are the neural contents of the epidural space?

A

recurrent meningeal/sinu-vertebral/sinus vertebral nerve

60
Q

Which of the contents of the epidural space are more likely located near or around the posterior longitudinal ligament?

A
  • anterior spinal canal artery and plexus
  • anterior internal vertebral venous plexus
  • basivertebral vein
  • recurrent meningeal/sinu-vertebral/sinus vertebral vein
  • Hofmann/anterior dural/meningovertebral ligament
61
Q

Which of the contents of the epidural space will be found near the lamina?

A
  • posterior spinal canal artery and plexus
  • posterior internal vertebral venous plexus
  • ligamentum flavum
  • recurrent meningeal/sinu-vertebral/sinus vertebral nerve
  • Hofmann/anterior dural/meningovertebral ligament
62
Q

What is the name given to the fluid present within the subdural space?

A

serous fluid

63
Q

what is the name given to the fluid within the subarachnoid space?

A

cerebrospinal fluid

64
Q

What ligaments may be present in the subarachnoid space?

A

dentate/denticulate ligament

65
Q

What is the name given to the lateral extension of pia mater along the spinal cord?

A

dentate (denticulate ligament)

66
Q

what is the unique feature of veins along the spinal canal?

A

lack bicuspid valves of typical veins