(Science: zoology) also, in entomology, the leg socket on an insects abdomen or thorax. The cup-shaped hollow in the hipbone into which the head of the femur fits to form a ball-and-socket joint.A socket found in the femur of mammals that assists in joint movement.
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... convex bones in lower part of picture 79ze), and puvic bones (The slender bone almost horizontal in the picture 112sm). You can see the the acetabulum, wich is the concavity on the side of the ischium were the head of the femur fits. Chek any ornithology book and you will see what´s in your ...
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