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|Ligament: Ligament of head of femur|
|Left hip-joint, opened by removing the floor of the acetabulum from within the pelvis. (Ligamentum teres visible at center.)|
|Hip-joint, front view. The capsular ligament has been largely removed. (Ligam. teres visible at center.)|
|Latin||ligamentum capitis femoris, ligamentum teres femoris|
|Gray's||subject #92 336|
The ligament of the head of the femur (Latin: ligamentum capitis femoris), or the round ligament of the femur (Latin: ligamentum teres femoris), is a triangular, somewhat flattened band implanted by its apex into the antero-superior part of the fovea capitis femoris; its base is attached by two bands, one into either side of the acetabular notch, and between these bony attachments it blends with the transverse ligament.
It is ensheathed by the synovial membrane, and varies greatly in strength in different subjects; occasionally only the synovial fold exists, and in rare cases even this is absent.
Research suggests it contributes little influence as a ligament past childhood, although it may still be important in transmitting arterial supply to the head. According to the Encyclopædia Britannica, the ligament gives the femur a stabilizing strength which, as in the orangutan, some animals lack.
The ligament of the head of the femur contains within it the acetabular branch of the obturator artery.
A human femur head with some synovium attached at the bottom and the ligament of the head of the femur attached at the top. A blue suture wire is drawn through the ligament. Ruler in centimeters at left side.
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