Flashcards in Exam 2 - Regions of the Vertebral Column (Lumbar) Deck (48)
What parts of the verebra may be used to distinguish L1-L4 for L5
What is the generic shape of the typical lumbar vertebral body from the cranial view?
What accounts for the direction of the lumbar curve?
the vertebral body AND intervertebral disc have a greater anterior height than posterior height
WHat is the effect of aging on the vertebral body of a lumbar vertebra
decrease in height
increase in circumference
What muscles may attach to a typical lumbar vertebral body?
Psoas minor will only attach to the vertebral body of which segments?
T12 and L!
What is the name given to ligaments that attach the vertebral body to articular process?
What ligaments attach the vertebral body to the transverse process?
What names identify ligaments that attach the dura mater to the vertebral body or pedicle?
hoffmann ligaments (megningeovertebral / anterior dural / Trolard's Ligament)
hofmann ligaments are identified in which regions along the vertebral column?
cervical - upper thoracic
Cercical - upper thoracic hofmann ligaments will attach what structures together?
duramater to segments above
What is the highes tlevel known to demonstrate hofmann ligaments?
What is the proposed function of the cervical - upper thoracic hofmann ligaments
resist caudal movent of the dural sac
resist gravitational forces on the dura and cord
Lumbar Hofmann ligaments will attach what structures together?
dura mater to lower segmental levels
What is the proposed function of the lumbar hofmann ligaments?
resist cranial movement of the dural sac during flexion
What is the proposed function of the proximal root sleeve ligament?
resist displacement of the peripheral nerve system in the intervertebral foramen
What osseous conditions of lumbar vertebrae facilitate a spinal tap in this region?
overlap of the laminae, shingling diminishes
overlap of spinous processes; imbrication diminishes
What is the outline of the vertebral foramen of a typical lumbar vertebra?
How does the size of the vertebral foramen differ along the spine?
cervicals have the greates size
thoracis are smallest
What part of the central nerve system is present in the lumbar spine?
conus medullaris is typically present in the vertebral forament of L1
What is the name of the elevation near the origin of the lumbar transverse process?
A styloid process occurs with what frequency and as a result of what condition?
7% occurrence as a result of CONGENITAL elongation of the lumbar accessory process
What parts of a vertebra are attached via the mammillo-accessory ligament?
the mammillary process and accessory process of the same segment
What was believed to be entrapped by the mammillo-accessory ligament?
the medial branch of the dorsal ramus of a lumbar spinal nerve
What muscles attach to the lumbar accessory process?
What are the orientation of the lumbar SAF and IAF?
What is Baastrup's Syndrome / Kissing spines?
elongation of the lumbar spinous process as a result of AGING
What muscles may attach to the transverse process of a typical lumbar vertebrae?
What are the posterior elements of the vertebra?