Glossary - J

Jaundice (JAWN-dus)

A symptom of many disorders. Jaundice causes the skin and eyes to turn yellow from too much bilirubin in the blood. See also Hyperbilirubinemia.

 

Jejunum (juh-JOON-um)

The middle section of the small intestine between the duodenum and ileum.

 

Jejunostomy (juh-joo-NAW-stuh-mee)

An operation to create an opening of the jejunum to a hole (stoma) in the abdomen. See also Enteral Nutrition.

Joint

The place where two bones meet. Most joints are composed of cartilage, joint space, fibrous capsule, synovium, and ligaments.

 

Joint space

The area enclosed within the fibrous capsule and synovium.

 

Juvenile rheumatoid arthritis

A chronic arthritis of childhood that causes pain, stiffness, swelling, and loss of function in the joints and may also affect other parts of the body.