Pelvis

A basin or funnel-shaped structure.


The strong basin-shaped ring of bone near the bottom of the spine, formed of the hip bones at the front and sides and the sacrum and coccyx at the back.


The internal space inside the pelvic girdle.


Lower part of the trunk of the body, composed of the right and left hip bones (the innominate bone, made up of the ilium, ischium, and pubis), the sacrum and the coccyx; it protects the lower abdominal organs and provides for the attachment of the legs. The pelvis is usually lighter and wider in females than in males.


A basin-shaped structure that includes the hip, sacrum, and coccyx of the spinal column; examples include the bony and renal pelvis.


The ringlike framework of bones in the lower portion of the trunk that supports the upper body and protects internal organs. The pelvis is constructed of the sacrum and the coccyx, which lie at the base of the spine, and two pelvic bones (hipbones), each of which is actually three fused bones (the ilium, ischium, and pubis). The two pelvic bones and the sacrum have rigid joints at the back of the body. The ilium flares out to form the hip. The ischium curves under and around, and the pubis leaves the ischium and extends forward. The two pubic bones meet at the front to form the pubic symphysis. The ring of bones encircles a central opening called the pelvic inlet. In women, the pelvic inlet is wider and shallower to ease childbirth. For the same reason, the fusion of the two pelvic bones is semirigid. In men, the bones of the pelvis are larger to support more body weight. The muscles


The bony structure formed by the hip bones, sacrum, and coccyx: the bony pelvis. The hip bones are fused at the back to the sacrum to form a rigid structure that protects the organs of the lower abdomen and provides attachment for the bones and muscles of the lower limbs.


The bony pelvis consists of the two hip bones, one on each side, with the sacrum and coccyx behind. It connects the lower limbs with the spine. The contents of the pelvis are the urinary bladder and rectum in both sexes; in addition the male has the seminal vesicles and the prostate gland surrounding the neck of the bladder, whilst the female has the womb, ovaries, and their appendages.


The lower part of the abdomen, located between the hip bones.


Comprising a circular arrangement of bones within the lower trunk, the pelvis serves to provide support for the trunk, safeguard the lower abdominal organs, and constitutes a segment of the hip joints. The pelvis is connected to the muscles of the abdominal wall, buttocks, lower back, and the inner and posterior regions of the thighs.


Comprising a pair of innominate bones (hip bones), the pelvis is structured with specific characteristics. The hip bones are connected at the rear by firm sacroiliac joints to the sacrum (a triangular bone positioned beneath the lumbar vertebrae). Towards the front, they arch forward, converging at a central juncture called the pubic symphysis.


Each innominate bone comprises three fused bones: the ilium, ischium, and pubis. The ilium, the largest and uppermost component, forms a broad, flat panel with an elongated, curved ridge (referred to as the iliac crest) along its upper edge. When seated, the ischium bears a significant portion of the body’s weight. The pubis, the smallest of the pelvic bones, extends forward from the ischium and loops around to reach the pubic symphysis, where it connects to the other pubis bone via robust fibrous tissue. All three bones converge within the acetabulum, a cup-shaped cavity that constructs the socket of the hip joint.


In females, the pelvis typically possesses a shallow and wide structure, and the pubic symphysis joint tends to be less rigid compared to that of males. These variations are conducive to childbirth. In males, the additional body weight necessitates a larger and sturdier pelvis to provide sufficient support.


Pelvic fractures can stem from a direct impact or from force transferred through the femur (thigh bone). Substantial force is necessary to induce such a fracture, and it commonly arises from incidents like road traffic accidents, with motorcyclists being particularly vulnerable. While the fracture itself usually heals without complications, it frequently coincides with harm to internal pelvic organs, primarily the bladder. In cases of organ damage, swift surgical intervention might be necessary.


Osteitis pubis, characterized by inflammation of the pubic symphysis, generally arises from repetitive strain on the pelvis. Soccer players often experience this due to frequent ball kicking. Indications encompass groin pain and tenderness across the front of the pelvis. In the majority of instances, rest leads to the resolution of the condition.


A bowl-like or hollow structure, similar to the kidney’s pelvis.


The bony structure created by the combination of the two hip bones and the sacrum and coccyx.


The cavity surrounded by the bony pelvis is divided into the true pelvis below and the false pelvis above, separated by the iliopectineal line. The entrance to the true pelvis, aligned with this line, is termed the pelvis inlet. The pelvis outlet is framed by the pubis in the front, the coccyx’s tip at the back, and the two bony protrusions known as the tubers ischii, which can be felt in the buttock cheeks.


 


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