This article is about the large compound hip structure. For the renal analog, see Renal pelvis.
| Bone: Pelvis | ||
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| Female type pelvis from Gray\'s Anatomy | ||
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| Male type pelvis from Gray\'s Anatomy | ||
| Gray\'s | subject #57 236 | |
| Dorlands/Elsevier | p_10/12623123 | |
The pelvis (pl. pelvises or pelves) is the bony structure located at the base of the spine (properly known as the caudal end). It is part of the appendicular skeleton. Each os coxae (hipbone) consists of three bones: the ilium, ischium, and the pubis. The ilium is the largest and upper most part, the ischium is the posterior-inferior (back-lower) part, and the pubis is the anterior (front) part of the hipbone. The two hipbones are joined anteriorly at the symphysis pubis and posteriorly to the sacrum. The pelvis incorporates the socket portion of the hip joint for each leg (in bipeds) or hind leg (in quadrupeds). It forms the lower limb (or hind-limb) girdle of the skeleton.
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There are four main types of pelvis
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Radiograph of a healthy human hip joint |
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Median sagittal section of pelvis. |
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Articulations of pelvis. Anterior view. |
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Articulations of pelvis. Posterior view. |
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Left hip-joint, opened by removing the floor of the acetabulum from within the pelvis. |
| Bones of pelvis/pelvic cavity | |
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| General | sacrum, coccyx, hip bone |
| Ilium | Body (Arcuate line) Wing: gluteal lines (Posterior, Anterior, Inferior) - Fossa - iliac spines (Anterior superior, Anterior inferior, Posterior superior, Posterior inferior) - Crest - Tuberosity |
| Ischium | Body (Ischial spine, Lesser sciatic notch) - Superior ramus (Tuberosity of the ischium) - Inferior ramus |
| Pubis | Body - Superior ramus (Pubic tubercle, Pubic crest, Obturator crest) - Inferior ramus (Pectineal line) |
| Compound | Acetabulum (Acetabular notch) - Iliopubic eminence/Iliopectineal line - Linea terminalis - Ischiopubic ramus/Pubic arch
Obturator foramen - Greater sciatic foramen/Greater sciatic notch - Lesser sciatic foramen Lesser pelvis (Pelvic inlet, Pelvic brim, Pelvic outlet) - Greater pelvis |
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