Atypical Thoracic T9 Flashcards
What joint classifications are identified at the vertebral body of T9?
fibrous (amphiarthrosis) syndesmosis, cartilaginous (amphiarthrosis ) symphysis and synovial plane (diarthrosis arthrodia)
how many synovial joints are formed at the vertebral body of T9?
four
How many symphysis joints are formed with the vertebral body of T9?
two
How many syndesmosis joints are formed at the vertebral body of T9?
typically four are identified ( as many as eight if the costocentral stellate/radiate ligaments are included)
Which synovial joint surfaces may be absent from the vertebral body of T9?
inferior costal demi-facets
What ligaments attach to the transverse process of T9?
inter transverse, capsular costotransverse, superior costotransverse, inferior costotransverse and lateral costotransverse ligaments
The superior costotransverse ligament of T9 will attach to what rib?
the 10th rib
Which muscles attach to the transverse process of T9?
the longissimus thoracic, semispinalis thoracic, multifidis, rotator longus, rotator braves, intertransversarii, elevator costar longus and elevator costar brevis
Which is the last thoracic vertebra to have an inferior costal demi-facet?
T9
What muscles arch to the spinous process of T9?
the trapezius, latissimus doors, multifidis, rotator longus, rotator braves and interspinalis
Which muscles are conspicuously absent at the T9 spinous process?
spinalis and semispinalis