The Bicep Muscle – Where is it and what is its function

So what is the Bicep Muscle – Where is it and what is its function ? Biceps is one of the muscles of the upper arm. The area between the shoulder and the elbow. Biceps is a voluntary striated muscles that under consious control. Biceps muscle originates from the shoulder via its two heads ( […]
The Bicep Muscle - Where is it and what is its function

So what is the Bicep Muscle – Where is it and what is its function ?

Biceps is one of the muscles of the upper arm. The area between the shoulder and the elbow.

Biceps is a voluntary striated muscles that under consious control.

Biceps muscle originates from the shoulder via its two heads ( hence the name bi-ceps). One head arises from the supra-glenoid tubercles on the scapula, the long head. It then goes through the shoulder joint and runs in the bicipital groove. The second head arises from the coracoid process, the short head.

The two heads are connected via tendons to the various bony landmarks as i mentioned above. The heads then continue into the body of the biceps muscle and then the body tapers into another tendon that attaches to the bicipital aponeurosis and the bicipital tuberosity on the ulna. All of these are anatomical landmarks that are very important to the appropriate physiological functioning of the biceps.

Two heads is in fact a blessing in disguise from nature as if you tear off one tendon you can still function if you have the other tendon attached.

The biceps has two functions.

  1. It is a flexor of the elbow joint and thus it facilitates pulling the forearm towards the upper arm.
  2. It is a powerful supinator of the elbow alongside the supinator muscle, i.e. it causes the forearm bones to uncross.

Many people believe that biceps is the only flexor of the elbow joint which is not the case. Biceps is helped by two other muscles to flex the elbow joint. One is brachialis muscle and the other is coracobrachialis muscles. All of these muscles combine to facilitate the flexion of forearm.

Learn more about the the Bicep Muscle – Where is it and what is its function here.

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