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Pelvic cavity

The pelvic cavity is a body cavity that is bounded by the bones of the pelvis. Its oblique roof is the pelvic inlet (the superior opening of the pelvis). Its lower boundary is the pelvic floor.

The pelvic cavity primarily contains the reproductive organs, urinary bladder, distal ureters, proximal urethra, terminal sigmoid colon, rectum, and anal canal. In females, the uterus, fallopian tubes, ovaries and upper vagina occupy the area between the other viscera.[1][2]


The rectum is located at the back of the pelvis, in the curve of the sacrum and coccyx; the bladder is in front, behind the pubic symphysis. The pelvic cavity also contains major arteries, veins, muscles, and nerves. These structures coexist in a crowded space, and disorders of one pelvic component may impact upon another; for example, constipation may overload the rectum and compress the urinary bladder, or childbirth might damage the pudendal nerves and later lead to anal weakness.

internal iliac artery

median sacral artery

ovarian artery

Joints of the pelvis. Anterior view.

Joints of the pelvis. Anterior view.

The arteries of the pelvis.

The arteries of the pelvis.

Dissection of side wall of pelvis showing sacral and pudendal plexuses.

Dissection of side wall of pelvis showing sacral and pudendal plexuses.

Sacral plexus of the right side.

Sacral plexus of the right side.

Male pelvic cavity

Male pelvic cavity

Female pelvic cavity

Female pelvic cavity

Lateral projection of the human body cavities, with the line separating the abdominal and pelvic cavities shown.

Lateral projection of the human body cavities, with the line separating the abdominal and pelvic cavities shown.

Overview at buffalo.edu

Diagram at southwest.tn.edu

Photo of model (female)

at the SUNY Downstate Medical Center – "The Male Pelvis: Articulated bones of male pelvis"

Anatomy photo:44:os-0502

at the SUNY Downstate Medical Center

Anatomy photo:44:os-0503