ischium[is′kē-ŭm, is′kē-ī, is′kē-ă]


1. The lower and posterior part of the hip bone, distinct at birth but later becoming fused with the ilium and pubis; it consists of a body, where it joins the ilium and superior ramus of the pubis to form the acetabulum, and a ramus joining the inferior ramus of the pubis.

os ischii , ischial bone

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