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The brachioradialis is a muscle of the forearm that flexes the forearm at the elbow. [1] [2] It is also capable of both pronation and supination, depending on the position of the forearm. [2] It is attached to the distal styloid process of the radius by way of the brachioradialis tendon, and to the lateral supracondylar ridge of the humerus.
Brachioradialis; Biceps brachii; of carpus (the carpal bones) at the wrist. flexor carpi radialis; flexor carpi ulnaris; palmaris longus; of the hand. flexor pollicis longus muscle; flexor pollicis brevis muscle; flexor digitorum profundus muscle; flexor digitorum superficialis muscle
The forearm is the region of the upper limb between the elbow and the wrist. [1] The term forearm is used in anatomy to distinguish it from the arm, a word which is used to describe the entire appendage of the upper limb, but which in anatomy, technically, means only the region of the upper arm, whereas the lower "arm" is called the forearm.
The biceps flexes the lower arm. The brachioradialis, in the forearm, and brachialis, located deep to the biceps in the upper arm, are both synergists that aid in this motion. Synergist muscles also called fixators, act around a joint to help the action of an agonist muscle.
When the forearm is in pronation (the palm faces the ground), the brachialis, brachioradialis, and supinator function to flex the forearm, with minimal contribution from the biceps brachii. Regardless of forearm position, (supinated, pronated, or neutral) the force exerted by the biceps brachii remains the same; however, the brachioradialis has ...
The brachioradialis reflex (also known as supinator reflex) is observed during a neurological exam by striking the brachioradialis tendon (at its insertion at the base of the wrist into the radial styloid process (radial side of wrist around 4 inches (102 mm) proximal to base of thumb)) directly with a reflex hammer when the patient's arm is relaxing.
Four days after he won his third consecutive U.S. figure skating title, Ilia Malinin normally would have put in four to six hours on the ice back at his home rink in Reston, Virginia.
The medial muscular branches supply the medial head of the triceps brachii.. That to the medial head is a long, slender filament, which lies close to the ulnar nerve as far as the lower third of the arm, and is therefore frequently spoken of as the ulnar collateral nerve.