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The red blood cells carry oxygen to the body's tissues and remove carbon dioxide and other wastes.

The synovial membrane lines the joint and produces synovial fluid to cushion the movement of the joint.

For a closed bone biopsy, the doctor inserts a needle through the skin and directly into the bone. This is also called a needle

For an open bone biopsy, the doctor makes a cut (incision) through the skin to expose an area of the bone. Then the doctor takes a

The hip is the largest ball-and-socket joint in the body. The thighbone (femur) fits tightly into a cup-shaped socket (acetabulum)

Osteoporosis is a progressive disease that causes bones to become thin and porous, significantly increasing the risk for spinal

A breast ultrasound is done by moving a small handheld instrument called a transducer back and forth across the skin of the breast

In the lungs, oxygen and carbon dioxide (a waste product of body processes) are exchanged. This happens in the tiny air sacs

The heart has four chambers: two atria and two ventricles. The right atrium receives oxygen-poor blood from the body and pumps it

Your heart has four separate chambers that pump blood. The chambers are called the right atrium, right ventricle, left atrium, and