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Flashcards in Vertebral Foramen Deck (46)
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1
Q

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

A

the vertebral foramen

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

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

4
Q

what are the segmental arteries?

A

the arteries whose branches supply the vertebra or segment

5
Q

what are the segmental arteries of the cervical spine?

A

the vertebral artery, ascending cervical artery and deep cervical artery

6
Q

what are the segmental arteries of the thoracic spine?

A

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

7
Q

what are the segmental arteries of the lumbar spine?

A

the lumbar arteries, iliolumbar arty, lateral sacral artery and median sacral artery

8
Q

what are the segmental arteries of the fifth lumbar vertebra?

A

the iliolumbar artery ,lateral sacral artery and median sacral artery

9
Q

what are the segmental arteries of the sacrum?

A

lateral sacral artery and medial sacral artery as well as the iliolumbar artery

10
Q

which branche of the dorsopinal artery will penetrate the meninges to enter subarachnoid space?

A

spinal artery

11
Q

what are the branches of the spinal artery?

A

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

12
Q

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

A

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

13
Q

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

A

anterior spinal canal artery & plexus

14
Q

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

A

posterior spinal canal artery and plexus

15
Q

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

A

anterior radicular artery

16
Q

which vessel will supply the dorsal nerve rootlets, nerve root and nerve root ganglion?

A

posterior radicular artery

17
Q

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

A

anterior spinal artery

18
Q

the anterior spinal artery is a branch of which artery?

A

the vertebral artery

19
Q

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

A

no

20
Q

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

A

anterior medullary feeder arteries

21
Q

the posterior spinal artery is a branch of which artery?

A

the posterior inferior cerebellar artery

22
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

23
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

24
Q

what forms the arterial vasa corona below C6?

A

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

25
Q

what are the intramedullary brances of the arterial vasa corona?

A

pial perforating arteries, central/ventral/sulcal perforating arteries

26
Q

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

A

central peforating arteries

27
Q

what is the primary artery supplementing the arterial vasa corona?

A

anterior medullary feeders and posterior medullary feeders

28
Q

what vessels drain the spinal cord?

A

pial veins

29
Q

what will pial veins drain into?

A

venous vasa corona

30
Q

which vessels form the venous vasa corona?

A

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

31
Q

what vessels 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 IVF?

A

intervertebral veins

36
Q

identify the meninges of the spinal cord 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 located each space formed between the osseous vertebral foramen and the spinal cord

A

epidural space - between the vertebral foramen and dura mater

subdural space - between the dura and arachnoid mater

subarachnoid space - between the arachnoid and pia maters

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 nerve

posterior longitudinal ligament

Hofmann 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 nerve

Hofmann 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

ligamentum 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 with 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 1 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 or denticulate ligaments

46
Q

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

A

they lack the bicuspid valve of typical veins