Brachialis muscle

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==Brachialis Muscle ==

The brachialis muscle is a muscle located in the upper arm. It lies deeper than the biceps brachii and is a primary flexor of the elbow joint. The brachialis muscle is essential for elbow flexion, contributing significantly to the movement of the forearm.

Anatomy

The brachialis muscle originates from the lower half of the anterior surface of the humerus, specifically from the distal half of the humerus. It inserts into the coronoid process and the tuberosity of the ulna. The muscle is innervated by the musculocutaneous nerve and receives blood supply from the brachial artery.

Function

The primary function of the brachialis muscle is to flex the elbow joint. Unlike the biceps brachii, which also assists in supination of the forearm, the brachialis muscle is solely responsible for flexion. This makes it a crucial muscle for movements that require bending the elbow, such as lifting objects.

Clinical Significance

Injuries to the brachialis muscle can result in pain and limited movement of the elbow. Conditions such as brachialis tendinitis or muscle tears can affect the function of the elbow joint. Proper diagnosis and treatment are essential for recovery and maintaining the range of motion.

Related Muscles

• Biceps brachii
• Triceps brachii
• Brachioradialis

See Also

• Elbow joint
• Musculocutaneous nerve
• Brachial artery