vertebral foramen part 4 ex. 1 QQ

Question 1

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

Answer 1

cervical- triangle
thoracic- oval
lumbar- triangle
sacrum- triangle

Question 2

what vertebral level will the spinal cord typically terminate?

Answer 2

L1

Question 3

what vertebral level will the dural sac typically terminate?

Answer 3

S2

Question 4

which of the segmental arteries will arise from the internal iliac artery?

Answer 4

iliolumbar and lateral sacral arteries

Question 5

identify all the segmental arteries (10)

Answer 5

Vertebral- C
Ascending Cervical- C
Deep Cervical- C,T
Posterior Intercostal-T
Superior Intercostal- T
Subcostal- T
Median Sacral-L 
Iliolumbar-L
Lateral Sacral-L
Lumbar-L

Question 6

what are the segmental arteries of the cervical spine?

Answer 6

vertebral artery
ascending cervical artery
deep cervical artery

VAD

Question 7

what are the segmental arteries of the thoracic spine?

Answer 7

deep cervical
superior intercostal
posterior intercostal
subcostal

DSPS

Question 8

what are the segmental arteries of the lumbar spine?

Answer 8

Median Sacral
Iliolumbar
Lateral Sacral
Lumbar

MILL

Question 9

what are the segmental arteries of the 5th lumbar vertebra and the sacrum?

Answer 9

iliolumbar
lateral sacral
median sacral

Question 10

which vertebra has the greatest number of segmental arteries associated with it?

Answer 10

L5

Question 11

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

Answer 11

dorsospinal artery

Question 12

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

Answer 12

spinal artery

Question 13

what are the branches of the spinal artery?

Answer 13

Osseous 
Anterior Spinal Canal 
Posterior Spinal Canal
Anterior Medullary Feeder
Posterior Medullary Feeder
Anterior Radicular
Posterior Radicular

Question 14

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

Answer 14

osseous
anterior spinal canal
posterior spinal canal

Question 15

what arteries are observed in the epidural space near the PLL?

Answer 15

anterior spinal canal artery and plexus

Question 16

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

Answer 16

posterior spinal canal artery and plexus

Question 17

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

Answer 17

anterior radicular
posterior radicular
anterior medullary feeder
posterior medullary feeder

Question 18

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

Answer 18

anterior radicular artery

Question 19

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

Answer 19

posterior radicular artery

Question 20

which artery is now said to enlarge and form the medullary feeder artery?

Answer 20

radicular artery

Question 21

what is the location and number of medullary feeder arteries present in adults?

Answer 21

9 anterior and 12 posterior medullary feeder

Question 22

the anterior spinal artery is a branch of which artery?

Answer 22

vertebral artery

Question 23

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

Answer 23

no

Question 24

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?

Answer 24

anterior medullary feeder arteries

Question 25

the posterior spinal artery is a branch of which artery?

Answer 25

posterior inferior cerebellar artery

Question 26

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

Answer 26

it lies in the posterolateral sulcus along the spinal cord

Question 27

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

Answer 27

posterior medullary feeder arteries

Question 28

what forms the arterial vasa corona above C3?

Answer 28

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

Question 29

what forms the arterial vasa corona below C6?

Answer 29

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

Question 30

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

Answer 30

intramedullary arteries

Question 31

what are the intramedullary branches of the arterial vasa corona?

Answer 31

pial perforating arteries and central/sulcal perforating arteries

Question 32

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

Answer 32

anterior spinal artery

Question 33

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

Answer 33

anterior medullary feeder | posterior medullary feeder

Question 34

what vessels drain the spinal cord?

Answer 34

pial veins

Question 35

what will pial veins drain into?

Answer 35

venous vasa corona

Question 36

which vessels form the venous vasa corona?

Answer 36

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

Question 37

which vessels will drain the venous vasa corona?

Answer 37

anterior medullary | posterior medullary

Question 38

which vessels will drain the ventral/anterior nerve roots?

Answer 38

anterior radicular

Question 39

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

Answer 39

posterior radicular

Question 40

what 9 veins will lie in the subarachnoid space?

Answer 40

``` Pial Venous vasa corona Communicating Anterior longitudinal Posterior longitudinal Anterior medullary Posterior medullary Anterior radicular Posterior radicular ```

Question 41

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

Answer 41

anterior internal vertebral venous plexus | basivertebral

Question 42

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

Answer 42

posterior internal vertebral venous plexus

Question 43

what venous vessels are identified in the intervertebral foramen?

Answer 43

intervertebral veins