Cranial aspect of the left knee joint of Loxodonta africana. Joint in maximal passive flexion, surrounding structures and patella removed. tf: Trochlea femoris, cm: medial condyle of femur, cl: lateral condyle of femur, *: Lig. cruciatum caudale, ACL: Lig. cruciatum craniale, mm: Meniscus medialis, ml: Meniscus lateralis, tt: Tuberositas tibiae.