Biceps femoris muscle



Origin: Attachment: capitulum fibulae.
 * 1) caput longum – ischiatic tuber;
 * 2) caput breve – labium laterale lineae asperae.

Insertion: n. ischiadicus&thinsp;/&thinsp;with high cleavage: n. tibialis (caput longum), n. fibularis communis (caput breve).

Function:
 * 1) knee joint – flexion;
 * 2) hip joint – extension, external rotation.