<Tr> <Td_colspan="2"> Anatomical terms of bone (edit on Wikidata) </Td> </Tr> <P> The hip bone (os coxa, innominate bone, pelvic bone or coxal bone) is a large flat bone, constricted in the center and expanded above and below . In some vertebrates (including humans before puberty) it is composed of three parts: the ilium, ischium, and the pubis . </P> <P> The two hip bones join at the pubic symphysis and together with the sacrum and coccyx (the pelvic part of the spine) comprise the skeletal component of the pelvis--the pelvic girdle which surrounds the pelvic cavity . They are connected to the sacrum, which is part of the axial skeleton, at the sacroiliac joint . Each hip bone is connected to the corresponding femur (thigh bone) (forming the primary connection between the bones of the lower limb and the axial skeleton) through the large ball and socket joint of the hip . </P> <P> The hip bone is formed by three parts: ilium, ischium, and pubis . At birth, these three components are separated by hyaline cartilage . They join each other in a Y - shaped portion of cartilage in the acetabulum . By the end of puberty the three regions will have fused together, and by the age of 25 they will have ossified . The two hip bones join each other at the pubic symphysis . Together with the sacrum and coccyx, the hip bones form the pelvis . </P>

Where is the hip located on the body
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