Biceps

For another muscle group, see triceps.

Location of biceps. Two different colours represent two different bundles which together are called 'the biceps'.      Short head     Long head

Muscles of the arm

The biceps brachii is a muscle in the arm. It has two parts, a long part and a short part. Using the elbow the muscle helps the movement of the forearm. When the muscle shortens, it bends the elbow and twists the forearm so that the palm faces up. The two parts of the muscle start on different parts of the shoulder blade and end together on the forearm.

The biceps is also a muscle in other quadrupeds. In humans, the muscle is more complex, and allows more complex movement than in other quadrupeds.

The word biceps literally means two-headed, and refers to the fact that the muscle attaches to two different parts of the shoulder. In quadrupeds, the muscle only attaches at one point of the shoulder.

Biceps Media

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  Attachment to the radial tuberosity and Bursa bicipitoradialis.

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  Panoramic ultrasonography of a proximal biceps tendon rupture. Top image shows the contralateral normal side, and lower image shows a retracted muscle, with a hematoma filling out the proximal space.

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  Biceps and triceps.

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  Movement of biceps and triceps when arm is flexing

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  The split line between the long and short heads