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Brachioradialis is a radial forearm muscle that flexes the arm on the elbow joint. Learn about its anatomy and function at Kenhub!
Function. The brachioradialis flexes the forearm at the elbow. Depending on the position of the hand during the flexion, the brachioradialis can tend to move the hand to neutral. [4]
Function. The brachioradialis muscle flexes your elbow joint. This is most powerful and active when your forearm is in a neutral position between pronation and supination. When your hand is turned palm down, the brachioradialis assists with supination, or turning your palm up.
The brachioradialis flexes the forearm at the elbow, especially when quick movement is required and when a weight is lifted during slow flexion of the forearm. The muscle is used to stabilize the elbow during rapid flexion and extension while in a midposition, such as in hammering.
The primary action of brachioradialis is working with the brachialis and biceps brachii as a synergistic to bend the arm at the elbow joint. All these three muscles are active during flexion, whether the arm is pronated, neutral, or supinated.
The brachioradialis is the first muscle the radial nerve innervates distal to the fracture. Thus, examining brachioradialis function helps monitor the recovery of this nerve. The brachioradialis and extensor carpi radialis longus are the first 2 muscles to regain motor strength following a humeral midshaft-level injury to the radial nerve.
The brachioradialis muscle is a forearm muscle that plays a significant role in both the flexion and extension of the forearm. It is located on the lateral side of the forearm, running from the distal end of the humerus (upper arm bone) down to the radius (one of the two bones of the forearm).
The brachioradialis muscle is responsible for flexion (i.e., movement of a limb closer to the center of the body) of the forearm and functions to stabilize the elbow joint in conjunction with the biceps and brachialis muscle when flexing the forearm.
The brachioradialis muscle is one of the muscles of the superficial part of the posterior compartment of the forearm.
Function. The brachioradialis serves several important functions related to the movement of the forearm and elbow: Elbow Flexion: The primary function of the brachioradialis is flexion of the elbow. It brings the forearm towards the upper arm.