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Pelvis
From Wikipedia, the free encyclopedia
| 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 illium, ischium, and the pubis. The illium 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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- Infrapubic angle is greater than 90˚ in females and less than 90˚ in males
- Pelvic inletin males is more heart-shaped, while in females it is more round or oval
- Greater sciatic notch narrower in males
- Acetabulum in males faces more laterally, while it faces more anteriorly in females
- Sacrum more triangular in females[1]
There are four main types of pelvis
- Gynaecoid
- Normal female pelvis
- Round with enlarged transverse diameter
- Android
- Normal male pelvis
- Heart shaped
- Anthropoid
- Long anterior to posterior diameter
- Platypelloid
- Long transverse diameter
- ^ Saukko P, Knight B. Knight's Forensic Pathology, 3rd Ed. Edward Arnold Ltd. 2004. ISBN 0-340-76044-3.
 Radiograph of a healthy human hip joint |
 Median sagittal section of pelvis. |
 Articulations of pelvis. Anterior view. |
 Articulations of pelvis. Posterior view. |
 Left hip-joint, opened by removing the floor of the acetabulum from within the pelvis. |
- Bone terminology
- Terms for anatomical location
- Hip fracture
- Lesser pelvis
- Greater pelvis
- Pelvic cavity
- Pelvic fracture
- Pelvic Bone Width
- Coccyx (tailbone)
- Pelvis at eMedicine Dictionary
- Coccyx pain, tailbone pain, coccydynia (Peer-reviewed medical chapter, available free online at eMedicine)
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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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