Levatores Costarum Flashcards
1
Q
origin
A
12 pairs, from TPs of C7-T11
2
Q
insertion
A
- longus: external surface of rib 2 levels below vertebrae of origin between tubercle & angle
- brevis: rib between tubercle and angle 1 level below vertebrae of origin
3
Q
innervation
A
dorsal rami T1-T12
4
Q
blood supply
A
posterior intercostal arteries
5
Q
actions
A
elevate ribs, assist inspiration, rotation & lateral flexion of vertebral column