BRACHIORADIALIS Meaning and
Definition
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The brachioradialis is a muscle located in the forearm that plays a crucial role in forearm and wrist movements. It is a superficial muscle situated on the lateral side of the forearm, specifically situated along the region between the wrist and the elbow joint. The term "brachioradialis" originates from the Latin words "brachium," meaning "arm," and "radius," referring to the bone in the forearm.
The brachioradialis muscle is elongated and fusiform in shape, appearing as a thick band that runs diagonally across the forearm. It spans from the lower part of the humerus bone in the upper arm to the radius bone in the forearm. The muscle has a dual function, as it flexes the forearm at the elbow joint and assists in pronation and supination of the forearm.
When flexing the forearm at the elbow joint, the brachioradialis acts as an important synergist, supporting the main flexor muscles of the forearm. It is particularly active during movements such as hammering, carrying heavy objects, or performing reverse grip exercises. Its specific action on pronation and supination helps to rotate the palm to face downwards or upwards, respectively.
The innervation of the brachioradialis muscle is provided by the radial nerve. Hence, any damage or compression to this nerve may result in weakness or dysfunction of the muscle. Therefore, the brachioradialis is clinically significant to assess and diagnose nerve pathologies or injuries affecting the radial nerve in the upper extremity.
Common Misspellings for BRACHIORADIALIS
Etymology of BRACHIORADIALIS
The word "brachioradialis" is derived from the Latin roots "brachium" meaning "arm" and "radius" referring to the forearm bone. The combined form "brachioradialis" thus represents a muscle that attaches from the upper arm to the radius bone in the forearm.
