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Os Coxae
The right and left halves of the pelvis are called the os coxae, or innominate bones. The os coxae themselves each consist of three bones: The ilium is the top portion of the pelvis (hands on hips), the ischium is further down, and the pubis is at the front base of the pelvis. None of these has 8 letters.
Rectus femoris and sartorius are anterior muscles of the thigh that originate on the os coxae.
By the hip joint
The OS Coxae or hip bone is the combination of the ilium, pubis, and iscium that are fused together
the sacrum
Ilium, Ischium, and pubis.
Ilium, Pubis and the Ischium
ilium, ischium, and pubis
The pelvic bones, or "hip bones" are also called the innominates, the OS coxae or the pelvis.
OS cox·ae (k k s ). n. The hipbone. OS coxaeThe OS coxae is made of three fused bones the ilium, ischium, and pubis. Note these bones do not fuse until adulthood (about 16 or 17 years old).
Symphysis Pubis/ Pubic Symphysis