8/3 Questions exam 1 Flashcards
What is the name given to the normal overlap or spinous process or spinous apophyses as seen on X-ray?
imbrication
What is the orientation of the spinous process/spinous apophysis at each region of the spine?
cervical - slight angle inferiorly
thoracic - noticeable angle inferiorly
lumbar - no inferior angle
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
At what vertebral level will the spinal cord typically terminate?
L1
At what vertebral level will the dural sac typically terminate?
S2
Identify all segmental arteries?
vertebral, ascending cervical, deep cervical, superior intercostal, posterior intercostal, subcostal, lumbar, iliolumbar, lateral sacral, median sacral
What are the segmental arteries of the cervical spine?
the vertebral artery, ascending cervical artery, 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 sacral artery
What are the segmental arteries of the fifth lumbar vertebra?
the iliolumbar artery, lateral sacral artery, median sacral artery
What are the segmental arteries of the sacrum?
the iliolumbar artery, lateral sacral artery, median sacral artery
What segmental levels are supplied by the vertebral artery?
C1-C6
What segmental levels are supplied by the ascending cervical artery?
C1-C6
What segmental levels are supplied by the deep cervical artery?
C7-T1
What segmental levels are supplied 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
Which vertebra has the greatest number of segmental arteries associated with it?
L5
What are the segmental arteries for L5?
iliolumbar artery, median sacral artery, lateral sacral artery
What branch of the segmental artery supplies the vertebra and the paravertebral region?
dorsospinal artery
Which branch of the dorsospinal artery will penetrate the meninges to enter subarachnoid space?
spinal 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 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 method of calculating the angle of the spinous process/spinous apophysis?
calculate the angle formed between the undersurface of the spinous process/spinous apophysis and the horizontal plane
