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Encyclopedia > Pelvis
Bone: Pelvis
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). 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. Image File history File links Size of this preview: 800 × 599 pixel Image in higher resolution (2277 × 1704 pixel, file size: 723 KB, MIME type: image/png) A labeled diagram of the human pelvis, created from a photograph I took of a model in a university anatomy lab. ... Elseviers logo. ... Grays Anatomy illustration of a human femur. ... The vertebral column seen from the side The vertebral column (backbone or spine) is a column of vertebrae situated in the dorsal aspect of the abdomen. ... In zootomy, several terms are used to describe the location of organs and other structures in the body of bilateral animals. ... In anatomy, the hip is the bony projection of the femur which helps you shake your ass. ... The Zebra is an example of a quadruped. ... In humans, the lower limb is an anatomical term for the limb that is attached to the pelvic girlde, what is commonly referred to as the leg. ... A human skeleton - (endoskeleton) In biology, the skeleton (from Greek σκελετός, dried-up) or skeletal system is the biological system providing physical support in living organisms. ...

Contents

Components

The pelvis is formed of three bones: the ilium, ischium and pubis. These three bones fuse together with age and are collectively known as the os coxae, or the innominate bone. The ilium of the pelvis is divisible into two parts, the body and the ala; the separation is indicated on the internal surface by a curved line, the arcuate line, and on the external surface by the margin of the acetabulum. ... The ischium forms the lower and back part of the hip bone. ... The pubis, the anterior part of the hip bone, is divisible into a body, a superior and an inferior ramus. ...


The pelvis is joined to the sacrum bone by ligaments (the sacroiliac joint), and the hip bones nest in specially shaped sockets (the acetabulum) on each side. For the record label, see Sacrum Torch The sacrum is a large, triangular bone at the base of the spine and at the upper and back part of the pelvic cavity, where it is inserted like a wedge between the two hip bones. ... A ligament is a short band of tough fibrous connective tissue composed mainly of long, stringy collagen fibres. ... The sacroiliac joint is a part of the body—supposedly a joint—in the lower area of the spinal cord. ... Bones of the Hip In anatomy, the hip is the bony projection of the femur, known as the greater trochanter, and the overlying muscle and fat. ... Categories: Anatomy stubs | Skeletal system ...


The upper edge of the ilium is known as the iliac crest. Human male pelvis, viewed from front Human female pelvis, viewed from front The pelvis is the bony structure located at the base of the spine (properly known as the caudal end). ...


The place at the front of the pelvis where both pubis bones join together is called the symphisis pubica. This is normally a very inflexible joint, but it softens and becomes more flexible during late pregnancy, allowing it to expand during labor for the baby's head to pass through. The pubic symphysis is the midline cartilaginous joint uniting the superior rami of the left and right pubic bones (pubis). ...


Function

The pelvis protects the digestive and reproductive organs in the lower part of the body, and many large nerves and blood vessels pass through it to supply the legs. It is also an important load-bearing part of the skeletal system. It also provides a connection between the axial skeleton and the hind limbs that is the legs. The hind limb consits of several bones such as the femur, tibia, fibula, tarsus, metatarsus and phalanges. The femur is the largest bone in the human body. Its lower end articulates with the tibia to form a hinge joint at the knee. The fibula is a shorter and smaller bone. Both the tibia and fibula form joints with the tarsus at the ankle. The reproductive system is the ensembles and interactions of organs and/or substances within an organism that strictly pertain to reproduction. ... The reproductive system is the ensembles and interactions of organs and/or substances within an organism that strictly pertain to reproduction. ...


Additional images

See also

Grays Anatomy illustration of a human femur. ... In zootomy, several terms are used to describe the location of organs and other structures in the body of bilateral animals. ... A hip fracture is a fracture in the proximal end of the femur (the long bone running through the thigh), near the hip joint. ... The lesser pelvis (or true pelvis) is that part of the pelvic cavity which is situated below and behind the pelvic brim. ... The greater pelvis (or false pelvis) is the expanded portion of the cavity situated above and in front of the pelvic brim. ... The Pelvic cavity is a body cavity that is bounded by the bones of the pelvis and which primarily contains reproductive organs. ... Pelvic fracture is a disruption of the bony structure of the pelvis. ... In humans, Biiliac Width is an anatomical term referring to the widest measure of the pelvis between the outer edges of the upper iliac bones. ... The coccyx is formed of four fused vertebrae. ...

References

    External links


      Results from FactBites:
     
    VII. The Veins. 3d. The Veins of the Lower Extremity, Abdomen, and Pelvis. Gray, Henry. 1918. Anatomy of the Human ... (0 words)
    It receives (a) the gluteal, internal pudendal, and obturator veins, which have their origins outside the pelvis; (b) the lateral sacral veins, which lie in front of the sacrum; and (c) the middle hemorrhoidal, vesical, uterine, and vaginal veins, which originate in venous plexuses connected with the pelvic viscera.
    They enter the pelvis through the lower part of the greater sciatic foramen and join to form a single stem which opens into the lower part of the hypogastric vein.
    It runs backward and upward on the lateral wall of the pelvis below the obturator artery, and then passes between the ureter and the hypogastric artery, to end in the hypogastric vein.
    Glossary.12. peduncolotomy, pelvis, periostitis and phalangitis (1878 words)
    The lower border of the true pelvis, termed the outlet, is formed by the coccyx, the protuberances of the ischia,the ascending rami of the ischia, and the descending rami of the ossa pubis and the sacrosciatic ligaments.
    Pelvis with an embryonic sacrum and narrowing of the transverse and oblique diameters.
    Pelvis with a congenital division at the symphysis pubis.
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