The hip bone is a large irregular bone, constricted in the center and expanded above and Latin, Os coxae, os innominatum . One of these, the os acetabuli, appears about the age of twelve, between the ilium and pubis The proportions of the female hip bone may affect the ease of passage of the baby during childbirth.
Metab Bone Dis Relat Res. ;5(2) Comparison of fetal and adult human bone: identification of a chemotactic factor in fetal bone. Somerman MJ.
The pelvic girdle, or OS coxae, consists of the fused bones identified as the By the time the fetus reaches the gestational age of 9 weeks (7.