Exam 1 - Vertebral Foramen Flashcards
What is the typical shape/outline of the vertebral foramen at each region o 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
Which of the segmental arteries will arise from the internal iliac artery?
the iliolumbar
and lateral sacral arteries
Identify all segmental arteries
vertebral ascending cervical deep cervical superior (highest) intercostal posterior intercostal subcostal lumbar iliolumbar lateral sacral median (middle) 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 (highest) intercostal artery
posterior intercostal artery
subcostal artery
What are the segmental arteries of the lumbar spine?
the lumbar arteries
iliolumbar artery
lateral sacral artery
median (middle) sacral artery
What are the segmental arteries of the fifth lumbar vertebra?
the iliolumbar artery
lateral sacral artery
median (middle) sacral artery
What are the segmental arteries of the sacrum?
the iliolumbar artery
lateral sacral artery
median (middle) sacral artery
What segmental levels are supplied by the vertebral artery?
C1 - C6
What segmental levels are supplied by the ascending cervical artery?
C1 intercostal artery?-C6
What segmental levels are supplied by the deep cervical artery?
C7-T1
What segmental levels are supplied by the superior (highest)
T1 and T2
What segmental levels are supplied by the posterior intercostal artery?
T3-T11
What segmental level(s) is/are 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 (middle) sacral artery?
L5
S1 - S5
coccyx
What segmental levels are supplied by the iliolumbar artery?
L5
S1 - S5
coccyx
What segmental levels are supplied by the lateral sacral artery?
L5
S1-S5
coccyx
Which vertebra has the greatest number of segmental arteries associated with it?
L5
What are the segmental arteries for L5?
iliolumbar artery
median (middle) sacral artery
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 posterior longitudinal ligament?
anterior spinal canal artery AND plexus
What areteries are observed in the epidural space near the ligamentum flavum?
posterior spinal canal artery AND plexus