| 单词 | sacroiliac joints |
| 释义 | sacroiliac jointssacroiliac jointsThe firm ligamentous junctions between the sides of the SACRUM and the two outer bones of the pelvis (iliac bones). Normally the sacro-iliac joints are semi-rigid, but in late pregnancy they relax a little to allow easier childbirth. See also RELAXIN. |
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