Muscles You Need to Know: Muscles That Act on the Scapula and Humerus (Brachium)

Question 1

Trapezius

Answer 1

Elevation, depression, fixation, adduction

Question 2

Rhomboideus major

Answer 2

Retraction, fixation (with s. anterior)

Question 3

Serratus anterior

Answer 3

Lateral and upward motion of scapula

Question 4

Deltoid

Answer 4

Abduction at shoulder

Question 5

Infraspinatus

Answer 5

Lateral rotation at shoulder

Question 6

Latissimus dorsi

Answer 6

Extension, adduction medial rotation at shoulder

Question 7

Pectoralis major and minor

Answer 7

Flexion, adduction at shoulder

Question 8

Subscapularis

Answer 8

Medial rotation (pronation) at shoulder

Question 9

Supraspinatus

Answer 9

Abduction at shoulder

Question 10

Teres minor

Answer 10

Lateral rotation at shoulder