15

Question 1

Where does the radial collateral ligament extend from, and what does it blend with distally?

Answer 1

The radial collateral ligament extends from the lateral epicondyle of the humerus and blends distally with the anular ligament of the radius.

Question 2

What is the function of the anular ligament at the elbow joint?

Answer 2

The anular ligament encircles and holds the head of the radius in the radial notch of the ulna, forming the proximal radio-ulnar joint and allowing for pronation and supination of the forearm.

Question 3

Where does the ulnar collateral ligament extend, and what does it consist of?

Answer 3

The ulnar collateral ligament extends from the medial epicondyle of the humerus to the coronoid process and olecranon of the ulna. It consists of three bands: the anterior cord-like band (strongest), posterior fan-like band (weakest), and slender oblique band.

Question 4

What movements occur at the elbow joint?

Answer 4

Flexion and extension occur at the elbow joint.

Question 5

What is the carrying angle of the elbow joint?

Answer 5

The long axis of the fully extended ulna makes an angle of approximately 170° with the long axis of the humerus.