biceps brachii

The proximal tendons of the biceps brachii are commonly involved in pathological processes and are a frequent cause of anterior shoulder pain.

In biceps brachii and brachialis, old adults show decreased strength (by 1/3) correlated with a reduction in the number of motor units (by 1/2).

The Triceps Brachii extend the elbow joint; the Biceps Brachii flex the elbow joint.

Tears of the biceps brachii occur in athletic activities and corrective surgery repairs biceps brachii tendon tears.

The term, from Latin, for the main upper arm flexor in the singular is the biceps muscle (from biceps brachii); however, many English speakers take it to be a plural and refer to the muscle of only one arm, by back-formation, as a bicep.

This neuron density far exceeds that measured in primates and lower mammals, and even exceeds the motor pool size for many muscles in the human body: biceps brachii, for example, is innervated by a motor pool that averages 441.5 motor neurons in size.

Probes and the prosector's own fingers are examples of tools used for blunt dissection where tissue may be separated from surrounding structures without cutting, i.e. the bellies of biceps brachii and coracobrachailis were made clearer by loosening the fascia between the two muscles with a blunt probe.