Anatomy Of Shoulder And Elbow Clinical

Question 1

What muscles attach to the greater tuberosity of the humerus?

Answer 1

SIT

Supraspinatus, infraspinatus, teres minor

Question 2

What muscle attaches to the lesser tuberosity of the humerus?

Answer 2

Subscapularis

Question 3

What are the functions of the clavicle?

Answer 3

Support the shoulder, protects the brachial plexus and vessels, attachment for muscles

Question 4

What muscles attach tot he clavicle?

Answer 4

Trapezius, 
Deltoid, 
Pectoralis major, 
Subclavius, 
Sternocleidomastoid, 
Sternohyoid

Question 5

What is the function of the labrum?

Answer 5

Elevates the glenoid edge,
Doubles the glenoid depth,
Increases the surface area,
Limits glenohumeral translation

Question 6

What is the labrum?

Answer 6

Surrounds the glenohumeral joint, made of fibrocartilage

Question 7

What is a Bankart lesion?

Answer 7

Injury of the anterior glenoid labrum of the shoulder due to anterior shoulder dislocation

Question 8

Common ways that the axillary nerve is damaged?

Answer 8

Shoulder dislocation, fracture of surgical neck of humerus

Question 9

Axillary nerve damage presentation?

Answer 9

Weakness of deltoid, sensory loss in badge area

Question 10

Role of rotator cuff muscles?

Answer 10

Protect, stability, hold head of humerus against glenoid cavity during shoulder movements

Question 11

Which is the only rotator cuff muscle not responsible for rotation of shoulder joint?

Answer 11

Supraspinatus

Question 12

What muscles cause shoulder flexion?

Answer 12

Pectoralis major, coracobrachialis, biceps brachii and deltoid (anterior fibres)

Question 13

Muscles responsible for extension t shoulder?

Answer 13

Teres major, latissimus dorsi and deltoid (posterior fibres)

Question 14

What joints are responsible for flexion and extension at the shoulder?

Answer 14

For 0-30degrees due to glenohumeral

Last 60degrees equal contribution of glenohumeral and scapulothoracic articulation

Question 15

Muscles responsible for shoulder abduction?

Answer 15

Deltoid (middle fibres), and

Supraspinatus

Question 16

Muscles responsible for shoulder adduction?

Answer 16

Pectoralis major and latissimus dorsi

Question 17

Muscles responsible for medial rotation at the shoulder?

Answer 17

Teres major and

Subscapularis

Question 18

Muscles responsible for lateral rotation at the shoulder?

Answer 18

Teres minor and

Infraspinatus

Question 19

Connections of ulnar collateral ligament?

Answer 19

Medial epicondyle to cornoid process and olecranon

Question 20

Connections of radial collateral ligaments?

Answer 20

Lateral epicondyle of humerus and blends with annular ligament

Question 21

Muscles responsible for pronation?

Answer 21

Pronator quadratus, pronator teres and gravity

Question 22

Muscles that cause supination at the radio-ulnar joint?

Answer 22

Biceps brachii, supinator