Upper Limb III: Joints And Injuries

Question 0

The – joint is the only articulation bw upper limb and axial skeleton; injury is rare

Answer 0

Sternoclavicular joint

Question 1

Joints of the shoulder complex (3 true articulations)

Answer 1

Sternoclavicular joint
Acromioclavicular joint
Glenohumeral joint

Question 2

Name the 2 ligaments of the coracoclavicular ligament (you have to lift clavicle to see it) of the Acromioclavicular joint

Answer 2

Conoid ligament - medial

Trapezoid ligament - lateral

Question 3

The – joint is a ball and socket, synovial joint with a loose fibrous joint capsule

Answer 3

Glenohumeral joint

Question 4

What two things strengthen the glenohumeral joint (very mobile but unstable)?

Answer 4

Rotator cuff mm

Tendon of long head of biceps brachii

Question 5

The – – ligament in the Glenohumeral joint holds tendon of the long head of biceps brachii in place and goes from greater to lesser tubercle

Answer 5

Transverse humeral lig

Question 6

2 ligaments of the glenohumeral joint

Answer 6

Transverse humeral lig

Coracoacromial lig

Question 7

Which joint in the elbow is a true elbow joint?

Answer 7

Humeroulnar joint

Question 8

The – collateral lig strengthens LATERAL side and prevents against a varus/bow legged force

Answer 8

Radial collateral lig

Question 9

The – ligament permits Protonation and supination of forearm

Answer 9

Anular ligament

Question 10

Hand and wrist joints are – joints

Answer 10

Condyloid joints

Question 11

AC sprain - tear ligaments of Acromioclavicular joint

What is the mechanism of injury?

Answer 11

Fall on outstretched arm, hit tip of shoulder