Vertebral Foramen Flashcards
what name is given to the opening located within the vertebral body- vertebral arch enclosure
the vertebral foramen
what is the name given to the union of all vertebral foramina into an apparent vertical cylinder
the vertebral canal or spinal canal
what neural structures will occupy the vertebral foramen until the level of L2
the spinal cord/ spinal medulla/ medulla spinalis, the proximal part of the peripheral nerve system, and the meninges
what is the typical shape/ outline of the vertebral foramen at each region of the spinal column/ vertebral column
cervical- triangular
thoracic- oval
lumbar- triangular
sacrum- triangular
identify the meninges of the spinal cord/ spinal medulla/ medulla spinalis
dura mater, arachnoid mater, pia mater
identify the meninges of the spinal cord/ spinal medulla/ medulla spinalis and the commonly accepted meaning of each
dura mater- tough mother
arachnoid mater- spider mother
pia mater- tender or delicate mother
name and locate each space formed between the osseous vertebral foramen and the spinal cord/ spinal medulla/ medulla spinalis
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
what are the contents of the epidural space
anterior and posterior spinal canal artery & plexus
anterior and posterior internal vertebral venous plexus
basivertebral vein
recurrent meningeal/ sinu-vertebral/ sinus vertebral nerve
Hoffmann ligaments
ligamentum flavum
posterior longitudinal ligament
which of the contents of the epidural space will be found near the vertebral body
anterior spinal canal artery & plexus
anterior internal vertebral venous plexus
basivertebral vein
recurrent meningeal/ sinu- vertebral, sinus vertebral nerve
posterior longitudinal ligament
Hoffmann ligaments
which of the contents of the epidural space are more likely located near or around the posterior longitudinal ligament
anterior spinal canal artery & plexus
anterior internal vertebral venous plexus
basivertebral vein
recurrent meningeal/ sinu-vertebral/ sinus vertebral nerve
Hoffmann ligaments
which of the contents of the epidural space will be found near the back of the vertebral arch
posterior spinal canal artery & plexus
posterior internal vertebral venous plexus
ligamenum flavum
what is the name given to the fluid within the subdural space
serous fluid
what is the name given to the fluid with the subarachnoid space
cerebrospinal fluid
what are the typical contents of the subarachnoid space down to the level C3
2 anterior spinal arteries 2 posterior spinal arteries 4 communicating arteries arterial vasa corona pial perforating arteries central/ventral/sulcal perforating arteries anterior/posterior proximal radicular arteries anterior/posterior distal radicular arteries anterior/posterior medullary feeder arteries anterior/posterior longitudinal veins communicating veins venous vasa corona pial veins anterior/ posterior radicular veins anterior/posterior medullary veins intervertebral veins dentate/ denticulate ligament
what contents of the subarachnoid space are changed below the level C6
the arterial vasa corona consists of 1 anterior spinal artery, 2 posterior spinal arteries and 3 communicating arteries
what branch of the segmental artery supplies and 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 arteries, posterior medullary feeder arteries, neural artery
which branches of the spinal artery are typically given off in the epidural space
osseous arteries, anterior spinal canal artery, posterior spinal canal artery
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 changes to the arterial vasa corona occur between C3 and C6
right and left anterior spinal arteries fuse to become a single median anterior spinal artery, the right and left posterior spinal arteries are unchanged, and the 4 communicating arteries are reduced to 3 communicating arteries
which vessel will supply the ventral/ anterior nerve rootlet
anterior proximal radicular artery
which vessel will supply the majority of the ventral/ anterior nerve root
anterior distal radicular artery
