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Flashcards in Day 14 Deck (17)
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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, highest (superior) inter coastal artery, posterior intercostal artery and subcostal artery


What are the segmental arteries of the lumbar spine?

the lumbar arteries, iliolumbar artery, lateral a sacral artery and median sacral artery


What are the characteristics of the Artery of Adamkiewicz?

it is a left side, anterior medullary feeder artery, located in the T9/T10 intervertebral foramen, and the primary vascular supply to the lumbar enlargement


What will the intervertebral veins drain into?

the external vertebral venous plexus or Batson's plexus


What is the unique histological feature of the veins of the vertebral column?

they appear to lack valves


What increases the depth of length of the intervertebral foramen in the cervical spine?

the transverse process


What is the location of the spinal nerve within the cervical intervertebral foramen?

toward the front and middle of the height of the cervical intervertebral foramen


What is the relationship between aging and cervical spine nerve root characteristics?

the length of the nerve root increases as it descends from its apparent origin on the spinal cord, but the cross-sectional area of the nerve root decreases


What is the relationship between aging and cervical spine intervertebral foramen size?

the cross-sectional area diminishes after age 50


What are the specific attachment sites for a cervical spinal nerve?

the sulcus for the ventral primary ramus on the costotransverse bar & the vertebral artery


What contributes to the anterior boundary of the thoracic intervertebral foramen

the costocentral joint


Which are the largest spinal nerves?

L5 and S1 spinal nerves


What increases the length of the intervertebral foramen at L5?

the lumbosacral tunnel


What forms the lumbosacral tunnel?

the lumbosacral ligament, transverse process of L5 and sacral ala


What condition is the result of encroachment on the L5 spinal nerve?

the far out syndrome


What ligament may contribute to the loss of size in the lumbar intervertebral foramen?

the transforaminal ligamnet