intermediate extrinsic back muscles

Question 1

serratus posterior superior origin

Answer 1

1. nuchal ligament
2. spinous process of C7-T3 vertebrae

Question 2

serratus posterior superior insertion

Answer 2

superior borders of ribs 2-5

Question 3

serratus posterior superior action

Answer 3

elevate ribs, proprioception

Question 4

serratus posterior superior innervation

Answer 4

anterior primary rami (first four intercostal nerves)

Question 5

serratus posterior superior/inferior artery

Answer 5

posterior intercostal artery

Question 6

serratus posterior inferior origin

Answer 6

spinous process of T11-L2 vertebrae

Question 7

serratus posterior inferior insertion

Answer 7

inferior borders of ribs 9-12

Question 8

serratus posterior inferior action

Answer 8

depress ribs, proprioception

Question 9

serratus posterior inferior innervation

Answer 9

anterior primary rami
(last four intercostal nerves)