Action of shoulder muscles

Question 1

Deltoid

Answer 1

flex, extend, medially and laterally rotate, and abduct arm at shoulder

Question 2

Supraspinatus

Answer 2

abduct arm at shoulder

Question 3

Infraspinatus

Teres minor

Answer 3

laterally rotate arm at shoulder

Question 4

Subscapularis

Answer 4

medially rotate arm at shoulder

Question 5

Teres major

Answer 5

adduct, medially rotate arm at shoulder