The movement of food through the digestive tract.

The way cells change food into energy after food is digested and absorbed into the blood.

A distinct signaling protein released by lymphocytes.

Barium enema x ray.

An obstruction of lymph drainage from the small intestine causing malabsorption.

A test that takes pictures of the body

A tear in the lower end of the esophagus caused by severe vomiting.

A condition caused by not eating enough food or not eating a balanced diet.

Tests that measure muscle pressure and movements in the gastrointestinal tract.

A huge, swollen colon that results from several different conditions. In children, megacolon is more common in boys than girls. See Hirschsprung disease.