atypical thoracic: T12 Flashcards Preview

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Flashcards in atypical thoracic: T12 Deck (18):
1

how many synovial joints are formed at the vertebral body of T12?

2

2

how many symphysis joints are formed with the vertebral body of T12?

2

3

how many joints are typically formed at the vertebral body of T12?

typically 8 (10 if the costocentral stellate/radiate ligaments are included)

4

which muscles are attached to the vertebral body of T12?

psoas major and psoas minor

5

what does the lateral tubercle of T12 represent?

transverse process

6

what does the superior tubercle of T12 represent?

mammillary process of lumbar vertebrae

7

what does the inferior tubercle of T12 represent?

accessory process of lumbar vertebrae

8

which is the smallest of the tubercles at the transverse process region of T12?

inferior tubercle

9

what joint surface of the typical thoracic transverse process is absent on T12?

transverse costal facet

10

what ligaments form the costotransverse joint of the 12th rib?

superior costotransverse ligament from T11 and lumbocostal ligament from L1

11

which costotransverse ligaments are attached at T12?

none; the capsular, superior, inferior, and lateral costotransverse ligaments lack an attachment to T12

12

what muscles attach to the transverse process region of T12?

longissimus thoracis, semispinalis thoracis, multifidus, rotator longus, rotator brevis and intertransversarii

13

which segment is the last to demonstrate a levator costarum brevis attachment?

T11

14

which segment is the last to demonstrate a levator costarum longus attachment?

T10

15

what is the orientation of the superior articular facets of T12?

they face backward, upward and lateral (BUL)

16

what is the orientation of the inferior articular facets of T12?

they face forward, downward and lateral (FoLD)

17

how many synovial joints are typically present at T12?

6

18

what muscles attach to the spinous process of T12?

trapezius, latissimus dorsi, serratus posterior inferior, iliocostalis lumborum, spinalis thoracis, multifidus, rotator longus, rotator brevis and interspinalis