Flashcards in atypical thoracic: T12 Deck (18):
how many synovial joints are formed at the vertebral body of T12?
how many symphysis joints are formed with the vertebral body of T12?
how many joints are typically formed at the vertebral body of T12?
typically 8 (10 if the costocentral stellate/radiate ligaments are included)
which muscles are attached to the vertebral body of T12?
psoas major and psoas minor
what does the lateral tubercle of T12 represent?
what does the superior tubercle of T12 represent?
mammillary process of lumbar vertebrae
what does the inferior tubercle of T12 represent?
accessory process of lumbar vertebrae
which is the smallest of the tubercles at the transverse process region of T12?
what joint surface of the typical thoracic transverse process is absent on T12?
transverse costal facet
what ligaments form the costotransverse joint of the 12th rib?
superior costotransverse ligament from T11 and lumbocostal ligament from L1
which costotransverse ligaments are attached at T12?
none; the 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, multifidus, rotator longus, rotator brevis and intertransversarii
which segment is the last to demonstrate a levator costarum brevis attachment?
which segment is the last to demonstrate a levator costarum longus attachment?
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?