SHOULDER INTERNAL ROTATORS

Question 1

Shoulder Internal Rototars:
Muscles Involved (5)

Answer 1

Subscapularis
Latissimus Dorsi
Teres Major
Pectoralis Major
Deltoids (Ant.)

Question 2

O: Subscapularis

Answer 2

Subscapular fossa

Question 3

I: Subscapularis

Answer 3

Lesser tuberosity of humerus

Question 4

N: Subscapularis

Answer 4

Upper and Lower
Subscapular

Question 4

A: Subscapularis

Answer 4

Internally rotates the arm

Question 5

O: Latissimus Dorsi

Answer 5

Iliac crest, lumbar fascia,
lower 6 thoracic vertebrae,
lower 4 ribs, inferior angle of
scapula

Question 6

I: Latissimus Dorsi

Answer 6

Floor of bicipital groove

Question 7

I: Teres Major

Answer 7

Medial lip of the bicipital
groove

Question 7

O: Teres Major

Answer 7

Lower third of lateral border
of scapula

Question 7

N: Latissimus Dorsi

Answer 7

Thoracodorsal

Question 7

A: Latissimus Dorsi

Answer 7

Extends, adducts, and internal
rotates the arm

Question 8

N: Teres Major

Answer 8

Lower
subscapular

Question 8

O: Pectoralis Major

Answer 8

Clavicle, sternum, and upper 6
costal cartilages

Question 9

A: Teres Major

Answer 9

Medially rotates, adducts arm;
shoulder stabilizer

Question 10

A: Pectoralis Major

Answer 10

Adducts and rotates arm
medially; flexes arm

Question 10

I: Pectoralis Major

Answer 10

Lateral lip of bicipital groove

Question 11

O: Deltoids (Ant.)

Answer 11

Lateral 3rd of clavicle,
acromion, spine of scapula

Question 11

N: Pectoralis Major

Answer 11

Medial and
Lateral Pectoral

Question 12

I: Deltoids (Ant.)

Answer 12

Middle and lateral surface of
humeral shaft

Question 13

N: Deltoids (Ant.)

Answer 13

Axillary

Question 14

A: Deltoids (Ant.)

Answer 14

Abducts arm; AF can flex and IR arm; PF can extend and ER