Ligament of the head of the femur in the orangutan and Indian elephant.
A literature search revealed that for over 100 years there has been a consensus that the ligament of the head of the femur (LHF) is absent in the orangutan and elephant. A dissection of the hip joints of an adult orangutan and an adult Indian elephant exposed, in each joint, a robust LHF that is functionally important. These LHFs are easily overlooked during a cursory examination of the hip joints because of the way they differ from the human LHF.
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Department of Surgery, Yale University School of Medicine, New Haven, Connecticut 06510.
D000818:Animals; D004606:Elephants / Q000033:anatomy & histology*; D005260:Female; D005270:Femur Head / Q000033:anatomy & histology*; D015186:Hominidae / Q000033:anatomy & histology*; D008023:Ligaments, Articular / Q000033:anatomy & histology*; D008297:Male; D011148:Pongo pygmaeus / Q000033:anatomy & histology*