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Spinal Anatomy > Vertebral Column/Spinal Column (Vertebral Foramen) > Flashcards

Vertebral Column/Spinal Column (Vertebral Foramen) Flashcards

1
Q

What name is given to the opening located within the vertebral body-vertebral arch enclosure?

A

The vertebral foramen

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2
Q

What is the name given to the union of all vertebral foramina into an apparent vertical cylinder?

A

The vertebral canal or spinal canal

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3
Q

What is the typical shape/outline of the vertebral foramen at each region of the spinal column/vertebral column?

A

Cervical- triangular; thoracic- oval; lumbar- triangular; sacrum- triangular

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4
Q

What are the segmental arteries?

A

The arteries whose branches supply the vertebra or segment

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5
Q

What are the segmental arteries of the cervical spine?

A

The vertebral artery, ascending cervical artery, and deep cervical artery

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6
Q

What are the segmental arteries of the thoracic spine?

A

The deep cervical artery, superior (highest) intercostal artery, posterior intercostal artery and subcostal artery

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7
Q

What are the segmental arteries of the lumbar spine?

A

The lumbar arteries, iliolumbar artery, lateral sacral artery and median (middle) sacral artery

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8
Q

What are the segmental arteries of the fifth lumbar vertebra?

A

The iliolumbar artery, lateral sacral artery, and median (middle) sacral artery

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9
Q

What are the segmental arteries of the sacrum?

A

Lateral sacral artery and median (middle) sacral artery

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10
Q

Which branch of the dorsospinal artery will penetrate the meninges to enter subarachnoid space?

A

Spinal artery

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11
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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12
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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13
Q

What arteries are observed in the epidural space near the ligamentum flavum?

A

Posterior spinal canal artery and plexus

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14
Q

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

A

Anterior radicular artery

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15
Q

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

A

Posterior radicular artery

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16
Q

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

A

Anterior spinal artery

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17
Q

The anterior spinal artery is a branch of which artery?

A

The vertebral artery

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18
Q

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

A

No

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19
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

20
Q

The posterior spinal artery is a branch of which artery?

A

The posterior inferior cerebellar artery

21
Q

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

A

It lies in the posterolateral sulcus along the spinal cord

22
Q

What forms the arterial vasa corona above C3?

A

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

23
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

24
Q

What are the intramedullary branches of the arterial vasa corona?

A

Pial perforating arteries, central/ventral/sulcal perforating arteries

25
Q

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

A

Ventral/central/sulcal perforating arteries

26
Q

What is the primary artery supplementing the arterial vasa corona?

A

Anterior medullary feeders and posterior medullary feeders

27
Q

What vessels drain the spinal cord?

A

Pial veins

28
Q

What will pial veins drain into?

A

Venous vasa corona

29
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

30
Q

Which vessel will drain the venous vasa corona?

A

Anterior medullary veins, posterior medullary veins

31
Q

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

A

Posterior radicular veins

32
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

33
Q

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

A

Anterior internal vertebral venous plexus, basivertebral vein

34
Q

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

A

Posterior internal vertebral venous plexus

35
Q

What venous vessels are identified in the intervertebral foramen?

A

Intervertebral veins

36
Q

Identify the meninges of the spinal cord (spinal medulla or medulla spinalis) and the commonly accepted meaning of each.

A

Dura mater- tough mother
Arachnoid mater- spider mother
Pia mater- tender or delicate mother

37
Q

Name and locate each space formed between the osseous vertebral foramen and the spinal cord (spinal medulla or medulla spinalis).

A

Epidural space- between the vertebral foramen and the dura mater
Subdural space- between the dura mater and the arachnoid mater
Subarachnoid space- between the arachnoid mater and the pia mater

38
Q

What is the name given to the fluid within the epidural space?

A

Interstitial fluid

39
Q

Which of the contents of the epidural space will be found near the vertebral body?

A
  • Anterior spinal canal artery and plexus
  • Anterior internal vertebral venous plexus
  • Basivertebral vein
  • Recurrent meningeal/sinu-vertebral, sinus vertebral nerve
  • Posterior longitudinal ligament
  • Hofmann/anterior dural/meningovertebral ligaments
40
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 nerve
  • Hofmann/anterior dural/meningovertebral ligaments
41
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
  • Ligamnetum flavum
42
Q

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

A

Serous fluid

43
Q

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

A

Cerebrospinal fluid

44
Q

What contents of the subarachnoid space are changed below the level C6?

A

The arterial vasa corona consists of 12 anterior spinal artery, 2 posterior spinal arteries, and 3 communicating arteries

45
Q

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

A

Dentate (denticulate) ligament

46
Q

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

A

They lack the bicuspid valve of typical veins

Spinal Anatomy (33 decks)

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