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Pelvis

The bowl-shaped bone that supports the spine and holds up the digestive, urinary, and reproductive organs. The legs connect to the body at the pelvis.

PubMed Health Glossary
(Source: NIH - National Institute of Diabetes and Digestive and Kidney Diseases)

Terms to know

Cauda Equina
The cauda equina (Latin for "horse's tail") is a bundle of spinal nerves.
Intervertebral Disc (Spinal Disk)
A circular piece of cushioning tissue situated between each vertebrae of the spine. Each disk has a strong outer cover and a soft jelly-like filling.
Pelvic Area
Having to do with the pelvis (the lower part of the abdomen located between the hip bones).
Pelvic Floor
Muscles that support the bladder, bowel, and uterus.
Pubic Symphysis
The joint between the left and right pubic bones at the front of the pelvis.
Pubis (Pubic Bone)
Either of the two bones (left and right) that form the front of the pelvis.
Ribs
A series of long curved bones occurring in 12 pairs extending from the spine to or toward the sternum.
Sacroiliac Joint
The joints where the spine and pelvis attach. The sacroiliac joints are often affected by types of arthritis referred to as spondyloarthropathies.
Sciatic Nerve
A nerve which originates in the spinal cord. The sciatic nerve is the largest nerve in the body. It has two major branches, the tibial nerve and the peroneal nerve.
Spinal Cord
A column of nerve tissue that runs from the base of the skull down the back. It is surrounded by three protective membranes, and is enclosed within the vertebrae (back bones). The spinal cord and the brain make up the central nervous system, and spinal cord nerves carry most messages between the brain and the rest of the body.
Spinal Nerves
A spinal nerve carries signals between the spinal cord and the body. There are 31 pairs of spinal nerves, one on each side of the vertebral column.
Spine
The bones, muscles, tendons, and other tissues that reach from the base of the skull to the tailbone. The spine encloses the spinal cord and the fluid surrounding the spinal cord. Also called backbone, spinal column, and vertebral column.
Vertebrae
The individual bones that make up the spinal column.

Terms to know

Cauda Equina
The cauda equina (Latin for "horse's tail") is a bundle of spinal nerves....
Intervertebral Disc (Spinal Disk)
A circular piece of cushioning tissue situated between each vertebrae of the spine. Each disk has a strong ou...
Pelvic Area
Having to do with the pelvis (the lower part of the abdomen located between the hip bones)....
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