Elbow

Question 1

What happens to the radius and ulna during supination and pronation?

Answer 1

Supination - parallel to each other

Pronation - radius rotates up and over the ulna

Question 2

Which muscles carry out pronation?

Answer 2

1. Pronator quadratus

2. Pronator teres

Question 3

Which muscles carry out supination?

Answer 3

1. Supinator

2. Biceps brachii (screwdiver action)

Question 4

What connects the radius and ulna and what is its function?

Answer 4

Interosseus membrane

Transfers forces

Question 5

Describe the proximal radio-ulnar joint

Answer 5

Pivot type synovial joint

Allows movement of proximal radial head with radial notch on ulna

Question 6

What is the job of the anula ligament of the radius?

Answer 6

It keeps the radial head in place (supporting pronation/supination)

Question 7

What are the contents of the cubital fossa?

Answer 7

Median nerve
Brachial artery/vein
Biceps tendon

Question 8

What underlies the ‘funny bone’?

Answer 8

Where the ulnar nerve becomes superficial near the medial epicondyle of humerus

Question 9

What is the most common type of elbow bursitis?

Answer 9

Olecranon bursitis

Question 10

What can cause bursitis?

Answer 10

Trauma

Question 11

What is tennis elbow?

Answer 11

Lateral epicondylitis (RSI)

Question 12

What often occurs during dislocation of the elbow?

Answer 12

Ulnar collateral ligament is torn

Fracture to the radial head/coronoid process/olecranon