Musculus anconeus

The video tutorial explains the anatomy and function of the angun eus muscle, located near the ulnar arch. It originates from the lateral epicondyle of the humerus and attaches to the olecranon of the ulna. The muscle is innervated by the radial nerve, which is part of the brachial plexus. Morphologically, it is an extension of the triceps brachii and functions as an extensor of the forearm, contributing to joint stabilization. The muscle is easily located on the back of the forearm and is best felt when the arm is stretched against resistance.

Where does the angun eus muscle originate from?

• Radial sulcus of the humerus

• Olecranon of the ulna

• Medial epicondyle of the humerus

• Lateral epicondyle of the humerus

Which nerve is responsible for the innervation of the angun eus muscle?

• Musculocutaneous nerve

• Ulnar nerve

• Median nerve

• Radial nerve

What is the primary function of the angun eus muscle?

• Rotation of the wrist

• Extension of the forearm

• Flexion of the forearm

• Abduction of the arm

How does the angun eus muscle contribute to joint stability?

• By acting as a capsule tensioner

• By acting as a flexor

• By rotating the forearm

• By abducting the arm

In what way is the angun eus muscle similar to the triceps brachii?

• Both act as extensors of the forearm

• Both are innervated by the ulnar nerve

• Both are flexors of the forearm

• Both originate from the medial epicondyle