VERTEBRAL COLUMN/SPINAL COLUMN - Vertebral foramen Flashcards
Identify all segmental arteries
vertebral, ascending cervical, deep cervical, superior intercostal, posterior intercostal, subcostal, lumbar, iliolumbar, lateral sacaral and median (middle) sacral
What are the segmental arteries of the cervical spine?
the vertebral artery, ascending cervical artery and deep cervical artery
What are the segmental arteries of the thoracic spine?
the deep cervical artery, superior intercostal artery, posterior intercostal artery and subcostal artery
What are the segmental arteries of the lumbar spine?
the lumbar arteries, iliolumbar artery, lateral sacral artery and median (middle) sacral artery
What are the segmental arteries of the fifth lumbar vertebra?
the iliolumbar artery, lateral sacral artery and median (middle) sacral artery
What are the segmental arteries of the sacrum?
the iliolumbar artery lateral sacral artery and median sacral artery
What segmental levels are supllied by the vertebral artery?
C1-C6
What segmental levels are supllied by the ascending cervical artery?
C1-C6
What segmental levels are supllied by the deep cervical artery?
C7-T1
What segmental levels are supllied by the superior intercostal artery?
T1, T2
What segmental levels are supplied by the posterior intercostal artery?
T3-T11
What segmental level is supplied by the subcostal artery?
T12
What segmental levels are supplied by the lumbar arteries?
L1-L4
What segmental levels are supplied by the median sacral artery?
L5, S1-S5 and coccyx
What segmental levels are supplied by the ilolumbar artery?
L5, S1-S5 and coccyx
What segmental levels are supplied by the lateral sacral artery?
L5, S1-S5 and coccyx
Which vertebra has the greatest number of segmental arteries associated with it?
L5
What are the segmental areteries for L5
iliolumbar artery, median sacral arter, and lateral sacral artery
What branch of the segmental artery supplies the vertebra and the paravertebral region?
dorsospinal artery
Which artery is primarily observed in the distal part of the intervertebral foramen?
spinal artery
What are the branches of the spinal artery?
osseous arteries, anterior spinal canal artery, posterior spinal canal artery, anterior medullary feeder artery, posterior medullary feeder artery, anterior radicular artery, posterior radicular artery
Which branches of the spinal artery supply the contents of the epidural space?
osseous arteries, anterior spinal canal artery, posterior spinal canal artery
What arteries are observed in the epidural space near the ligamentum flavum?
posterior spinal canal artery and plexus
What arteries are observed in the epidural space near the posterior longitudinal ligament?
anterior spinal canal artery and plexus
Which branches of the spinal artery supply the contents of the subarachnoid space?
anterior radicular artery, posterior radicular artery, anterior medullary feeder artery, posterior medullary feeder artery
Which vessel supply the ventral/anterior nerve rootlet and nerve root?
anterior radicular artery
Which vessel will supply the dorsal/posterior nerve rootlets, nerve root and nerve root ganglion?
posterior radicular artery
What is the name given to the artery that leis in front of the spinal cord along its length?
anterior spinal artery
The anterior spinal artery is a branch of which artery?
the vertebral artery
Is the anterior spinal artery a single, continuous artery along the spinal cord?
no
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?
anterior medullary feeder arteries
The posterior spinal artery is a branch of which artery?
the posterior inferior cerebellar artery
What is the position of the posterior spinal artery relative to the spinal cord?
it lies in the posterolateral sulcus along the spinal cord
Is the posterior spinal artery a single, continuous artery along the spinal cord?
no
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?
posterior medullary feeder arteries
What forms the arterial vasa corona above C3?
right and left anterior spinal arteries, right and left posterior spinal arteries and 4 communicating arteries
What forms the arterial vasa corona below C6?
a median anterior spinal artery, right and left posterior spinal arteries, and 3 communicating arteries
What is the generic name given to arteries that penetrate the spinal cord?
intramedullary arteries
What are the intramedullary branches of the arterial vasa corona?
pial perforating arteries and central/ventral/sulcal perforating arteries
What artery gives off the ventral/central/sulcal perforating arteries?
the anterior spinal artery
What arterial vasa corona branches supply gray matter and most of the spinal cord?
ventral/central/sulcal perforating arteries
What intramedullary branches supply about one third of the spinal cord?
pial perforating arteries
What is the source for pial perforating arteries?
the pial plexus
What arteries form the pial plexus?
the posterior spinal arteries and the communicating arteries
What arteries are responsible for supplementing the arterial vasa corona along the cord?
anterior medullary feeders and posterior medullary feeders
What vessels drain the spinal cord?
pial veins
What will pial veins drain into?
venous vasa corona
Which vessels form the venous vasa corona?
right and left anterior longitudinal veins, right and left posterior longitudinal veins, and 4 communicating
Which vessels will drain the venous vasa corona?
anterior medullary veins, posterior medullary veins
Which vessels will drain the ventral/anterior nerve roots?
anterior radicular veins
Which vessels will drain the dorsal/posterior nerve roots?
posterior radicular veins
What veins will lie in the subarachnoid space?
pial veins, venous vasa corona, anterior longitudinal, posterior longitudinal, communicating, anterior medullary, posterior medullary, anterior radicular, posterior radicular
What veins are observed in the epidural space near the posterior longitudinal ligament?
anterior internal vertebral venous plexus, basivertebral vein
What veins are observed in the epidural space near the ligamentum flavum?
posterior internal vertebral venous plexus
Which of the contents of the epidural space are more liekly located near or around the posterior longitudinal ligament?
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
What is the name given to the fluid present within the subdural space?
serous fluid
What is the name given to the fluid with the subarachnoid space?
cerebrospinal fluid
What ligaments may be present in the subarachnoid space?
dentate/denticulate ligament
What is the name given to the lateral extension of pia mater along the spinal cord?
dentate (denticulate) ligament
What is the unique feature of veins along the spinal canal?
they lack the bicuspid valve of typical veins
