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Shoulder Ultrasound Muscular-Skeletal Sonography Study Sheet Part ONE o The long head of the biceps arises from the __________ within the shoulder joint. Supraglenoid tubercle o The biceps is a flexor of the: Elbow o Tendons of the rotator cuff support the articular capsule of the shoulder joint. The tendon which provide support anteriorly is the: Subscapularis o Blood supply to the glenoid labrum is from the: Suprascapular artery Circumflex scapular artery Posterior circumflex humeral artery o The thick, triangular muscle which covers the anterior, posterior and lateral aspects of the shoulder is the: Deltoid o The deltoid is a powerful abductor of the Humerus o The rotator cuff consists of Subscapularis Supraspinatus Infraspinatus Teres minor o These tendons of the rotator cuff act together to stabilize the _______________ joint. Glenohumeral joint o The tendons of the rotator cuff have a thickness of 5-10 mm o With the arm abducted, the subscapularis draws the humerus Forward and inferior o This large triangular muscle arises from the entire circumference of the subscapular fossa. Subscapularis o The ______________ aids the Deltoid in abducting the arm, and maintains the humeral head in the glenoid cavity. Supraspinatus o The Infraspinatus muscle acts to rotate the humerus Externally o The _______________ opposes the actions of the deltoid, biceps brachii, and triceps to prevent upward subluxation of the humerus. Teres minor o The thin, flat ligament which extends from the base of the coracoid to the medial end of the scapular notch is the Superior transverse scapular ligament o The strong triangular band connecting the coracoid and the acromium is known as the Coracoacromial ligament o A history of ____________ may predispose a patient to “frozen shoulder: Diabetes o The best position for a shoulder examination is with the patient Seated on a rotating stool o Anisotropy occurs when Insonation is not perpendicular to tendon o Anisotropy results in the tendon appearing Hypoechoic