MSK 5

Question 1

Movement of the elbow joint and what muscles and nerve roots

Answer 1

Flexion

• brachioradialis - radial nerve C5-T1
• biceps brachii - musculocutaneous C5-7
• Brachialis - musculocutaneous C5-7

Extension
- triceps brachii - radial nerve - C5-T1 and Axillary (long head) C5 C6

Question 2

Articulation of the elbow joint

Answer 2

Head of radius with Capitulum (humerus)
Trochlear notch of ulnar with Trochlea of humerus
Olecranon process with the olecranon fossa.

Question 3

What type of joint classification is the elbow joint and what is its sub classification

Answer 3

Synovial joint, hinge type. Allows Flexion and extension.