Atypical Thoracic: T12 Flashcards
How many synovial joints are formed at the vertebral body of T12?
2
How many symphysis joints are formed with the vertebral body of T12?
2
How many joints are typically formed at the vertebral body of T12?
4 are typically identified (as many as 6 if the costocentral stellate/ radiate ligaments are included)
Which muscle(s) are 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 verebrae
What does the inferior tubercle of T12 represent?
The accessory process of lumbar vertebrae
Which is the smallest of the tubercles at the transverse process region of T12?
The inferior tubercles
What joint surface of the typical thoracic transverse process is absent of T12?
The transverse costal facet
What ligaments form the costotransverse joint of the 12th rib?
The superior costotransverse ligament from T11 and the lumbocostal ligament from L1
Which costotransverse ligament(s) are attached at T12?
NONE, they all 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 demonstrate a levator costarum brevis attachment?
T11
Which segment is the last to demonstrate a levator costarum longus attachment?
T10
What is the orientation of the superior articular facets of T12?
Backward, upward, and lateral (BUL)
