review of muscle function

Question 1

muscle/s responsible for retraction of the scapula?

Answer 1

rhomboids, middle trap

Question 2

muscle/s responsible for elevation of the scapula as well as extension, lateral flexion and contralateral rotation of the neck?

Answer 2

upper trap

Question 3

muscle/s responsible for depression and ventral tilt of the scapula?

Answer 3

pec minor

Question 4

muscle/s responsible for elevation of the scapula as well as lateral flexion, ipsilateral rotation of the cervical spine?

Answer 4

levator scap

Question 5

muscle/s responsible for upward rotation of the scapula?

Answer 5

serratus anterior
upper trap
lower trap

Question 6

muscle/s responsible for downward rotation of the scapula?

Answer 6

levator
pec minor
rhomboids

Question 7

muscle/s responsible for protraction and upward rotation of the scapula? when paralyzed and forward reaching is attempted winging of the scapula is seen.

Answer 7

serratus anterior

Question 8

muscle/s responsible for shoulder abduction?

Answer 8

deltoid
or middle delt
supraspinatus

Question 9

muscle/s responsible for shoulder external rotation?

Answer 9

infraspinatus

teres minor

Question 10

muscle/s responsible for internal rotation?

Answer 10

subscapularis

Question 11

muscle/s responsible for shoulder IR, ADDuction and extension?

Answer 11

assist muscle so it’s:

teres major

Question 12

muscle/s responsible for shoulder IR, extension, and adduction, scapular depression, elevation of the pelvis?

Answer 12

lattisimus dorsi

Question 13

muscle/s responsible for shoulder adduction and IR?

Answer 13

pec major

Question 14

muscle/s responsible for shoulder flexion and horizontal adduction?

Answer 14

anterior deltoid