Muscle Action

Question 1

Trapezius

Answer 1

Upper- Scapular elevation, upward rotation of scapula
Middle- Scapular Retraction
Lower- Scapular depression, upward rotation of scapula

Question 2

Latissimus Dorsi

Answer 2

Shoulder extension, adduction, and medial rotation

Question 3

Infraspinatus

Answer 3

Shoulder external rotation

Question 4

Deltoid

Answer 4

Anterior- shoulder flexion and internal rotation
Middle- shoulder abduction
Posterior- shoulder extension and external rotation

Question 5

Levator Scapulae

Answer 5

scapular elevation and upward rotation

Question 6

Rhomboid Major

Answer 6

Scapular retraction

fix scapula to the thoracic wall

Question 7

Rhomboid Minor

Answer 7

Scapular retraction

fix scapula to the thoracic wall

Question 8

Serratus Anterior

Answer 8

Scapular protraction and rotation, fixes scapula to thorax

Question 9

Supraspinatus

Answer 9

shoulder abduction

Question 10

iliocostales

Answer 10

Lateral flexion and extension of spine

Question 11

Longissimus

Answer 11

Lateral flexion and extension of spine

Question 12

Spinalis

Answer 12

Lateral flexion and extension of spine

Question 13

Subscapularis

Answer 13

shoulder internal rotation, shoulder adduction

Question 14

Teres Major

Answer 14

Shoulder adduction and internal rotation

Question 15

Teres Minor

Answer 15

Shoulder external rotation

Question 16

Semispinalis Capitis

Answer 16

Lateral Flexion of the neck, neck rotation, neck extension

Question 17

Splenius Cervicis

Answer 17

Lateral flexion of the neck, neck rotation, neck extension

Question 18

Quadratus Lumborum

Answer 18

Extensions and lateral flexion of the spine