8/31 Questions Exam 2 Flashcards
(27 cards)
Which muscle(s) is attached to the vertebral body of T12?
psoas major and psoas minor
What does the lateral tubercle of T12 represent?
the transverse process
What does the superior tubercle of T12 represent?
the mammillary process of lumbar vertebrae
What does the inferior tubercle of T12 represent?
the accessory process of lumbar vertebrae
What is the location of the lateral tubercle?
it projects laterally from the pars interarticularis of T12
What joint surface of the typical thoracic transverse process is absent on T12?
the transverse costal facet
What ligaments form the costotransverse joint of the twelfth rib?
the superior costotransverse ligament from T11 and the lumbocostal ligament from L1
Which costotransverse ligament(s) are attached at T12?
none, capsular, superior, inferior, and lateral costotransverse ligaments lack an attachment to T12
What muscles attach to the transverse process region of T12?
longissimus thoracis semispinalis thoracis multifidis rotator longus rotator brevis intertransversarii
Which segment is the last to demostrate a levator costarum brevis attachment?
T11
Which segment is the last to demostrate a levator costarum longus attachment?
T10
What is the orientation of the superior articular facets of T12?
they face backward, upward, and lateral (BUL)
What is the orientation of the inferior articular facets of T12?
they face forward, downward, and lateral (FoLD)
How many synovial joints are typically present at T12?
6
What muscles attach to the spinous process of T12?
trapezius latissimus dorsi serratus posterior inferior iliocostalis lumborum spinalis thoracis multifidis rotator longus rotator brevis interspinalis
What is the generic shape of the typical lumbar vertebral body from the cranial view?
reniform or kidney-shaped
What accounts for the direction of the lumbar curve?
the vertebral body and intervertebral disc have a greater anterior height than posterior height
How many joint surfaces are present on the vertebral body of a typical lumbar?
6
How many synovial joint surfaces are present on the vertebral body of a typical lumbar?
none
How many cartilaginous (amphiarthrosis) symphysis joint surfaces are on a typical lumbar vertebral body?
2
How many fibrous (amphiarthrosis) syndesmosis joint surfaces are on a typcial lumbar vertebral body?
4
What muscle(s) may attach from the first lumbar vertebral body?
psoas major and psoas minor
What muscle(s) may attach from the second down to the fourth lumbar vertebral body?
psoas major
Psoas minor will only attach to the vertebral body of which segments?
T12, T1
