Muscle action- posterior torso

Question 1

Latissimus Dorsi

Answer 1

Adduction, extension, and medial rotation of arm

Question 2

Trapezius

Answer 2

elevation and upward rotation of scapula (extends neck, shrug shoulders)

Question 3

Levator scapulae

Answer 3

Elevates scapula (shrugging)

Question 4

Rhomboideus

Answer 4

retraction of scapula (pulls shoulder blades together)

Question 5

Rhomboideus minor

Answer 5

Retraction of scapula

Question 6

Teres major

Answer 6

adduction of arm

Question 7

Infraspinatus

Answer 7

Lateral external rotation of humerus

Question 8

Erector spinae

Answer 8

Extends vertebral column (side-to-side)