Anatomy of the Forearm and Elbow Quiz

The humerus is located in the upper arm and is not part of the forearm, which consists of the radius and ulna.

Forearm muscles primarily facilitate the rotational movements of pronation (turning the palm down) and supination (turning the palm up).

The olecranon process, located at the back of the ulna, forms the bony prominence of the elbow.

The flexor pollicis longus muscle is located in the deep layer, not the superficial layer, of the anterior compartment of the forearm.

The humerus forms the major portion of the elbow joint, articulating with the ulna and radius.

The ulnar collateral ligament is vital for stabilizing the elbow joint, preventing excessive side-to-side movement.

The median nerve provides innervation to most muscles in the forearm, controlling their movement and sensation.

The radial artery is the primary blood supply to most forearm muscles, providing oxygen and nutrients.

The annular ligament plays a crucial role in preventing the posterior displacement of the radius in relation to the ulna.

The coronoid ligament connects the coronoid process of the ulna to the anterior portion of the humerus, providing stability to the elbow joint.

The brachioradialis muscle primarily contributes to elbow flexion, assisting in bending the forearm towards the upper arm.

The radial nerve innervates the extensor carpi radialis brevis muscle, controlling its contraction and function.

The supinator muscle assists in stabilizing the distal radioulnar joint during pronation and supination movements.

The triceps brachii muscle is the primary extensor of the elbow joint, responsible for straightening the arm.