MSK: Anatomy Of The Elbow And Wrist

Question 1

Name the 3 joints in the elbow.

Answer 1

1. Ulno-humeral
2. Radio-humeral
3. Upper radioulnar joint

Question 2

Name the 3 ligaments of the elbow.

Answer 2

1. Medical collateral ligament
2. Lateral collateral ligament
3. Annular ligament

Question 3

What factors which contribute to the stability of these joints?

Answer 3

• Muscles
• Ligaments
• Capsule

Question 4

How is the ‘fat pad’ located around the elbow joint used clinically?

Answer 4

When an arm bone has been fractured there is effusion into the joint. This lifts the fat pad away from the bone.

This is used within practice when you are unsure as to whether a bone has been fractured as it might not be clear on an X-ray.

Question 5

What is the Ulno humeral responsible for?

Answer 5

Flexion-Extension

Question 6

What is the radio humeral responsible for?

Answer 6

Flexion-Extention

Question 7

What is the upper radioulnar joint responsible for?

Answer 7

Pronation-Supination

Question 8

What muscles are innervated by the musculocutaneous nerve?

Answer 8

Brachiallis, brachial biceps

Question 9

What muscles are innervated by the radial nerve?

Answer 9

Barchioradialis, triceps, anconeus

Question 10

What are the structures found in the cubital fossa? (lateral to medial)

Answer 10

TAN

Tendon: Tendon of biceps brachii
Artery: Radial artery
N: Radial Nerve

Question 11

What is the name of the bursa surrounding the elbow?

Answer 11

Olecranon bursa