Flashcards in Vertebral Foramen Deck (48)
What typical shape/outline of the vertebral foramen at each region of the spinal column/vertebral column?
cervical- triangular; thoracic - oval; lumbar - triangular; sacrum - triangular
At what level will the spinal cord typically terminate?
At what level will the dural sac typically terminate?
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 sacrum?
the iliolumbar artery, lateral sacral artery and median (middle) sacral artery
What segmental levels are supplied by the vertebral artery?
What segmental levels are supplied by the ascending cervical artery?
What segmental level(s) is/are supplied by the subcostal artery?
What branch of the segmental artery supplied the vertebra and the paravertebral region?
Which artery is primarily observed in the distal part of the intervertebral foramen?
which branch of the dorsospinal artery will penetrate the meninges to enter subarachnoid space?
What are the branches of the spinal artery?
osseous arteries, anterior spial 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 posterior longitudinal ligament?
anterior spinal canal artery and plexus
What arteries are observed in the epidural space near the ligamentum flavum?
posterior 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 will supply the dorsal/posterior rootlets, nerve root and nerve root ganglion?
posterior radicular artery
Which vessel will supply the ventral/anterior nerve rootlet and nerve root?
anterior radicular artery
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?
What are the intramedullary branches of the arterial vasa corona?
pial perforating arteries, central/ventral/sulcal perforating arteries
What intramedullary branches supply about one third of the spinal cord?
pial perforting arteries
what arterial vasa corona branches supply gray matter and most of the spinal cord?
ventral/central/sulcal perforating arteries
What is the source for pial perforating arteries?
the pial plexus
What is the primary artery supplementing the arterial vasa corona?
anterior medullary feeders and posterior medullar feeders
What is the location and number of medullary feeder arteries present in the adult?
9 anterior and 12 posterior medullary feeder arteries
What is the name given to the artery that lies in front of the spinal 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?