Shoulder Anatomy

Question 1

Subscapularis Muscle and Tendon

Answer 1

Connects the anterior portion of the scapula to the lesser Tuberosity of the humorous

Muscle functions to control internal rotation of the arm and aids moving an extended arm inward (adduction)

Largest and strongest of four muscles that compromise cuff

Question 2

Suprasponatis muscle and tendon

Answer 2

Connect scapula superior to the scapular spine to the greater tuberosity of humerus

Muscle functions to initiate motions that lift the arm outward away from body (abduction)

Superior component of the rotator cuff

Question 3

Teres Minor

Answer 3

Connects the middle of the lateral border of the scapula to the greater tuberosity.

Functions in conjunction with infraspinatus to control external rotations and moving extended arm inward

Question 4

Infraspinatus muscle and tendon

Answer 4

Connect the body of the scapula below the scapular spine to the greater tuberosity

External rotation it controls.

Question 5

Hill Sachs Deformity

Answer 5

Cortical depression in the posterolateral humeral head