The passage from the mouth to the anus that allows a person to digest food and eliminate waste. The lower GI tract includes the colon, rectum and anus.

Part of the lower gastrointestinal tract. The large bowel stores waste until it leaves the body as faeces. Its four main sections are the caecum, colon, rectum and anus. Also called the large intestine.

The middle part of the gastrointestinal tract, which takes food from the stomach and absorbs nutrients. It has three sections: the duodenum, the jejunum and the ileum. Also known as the small intestine….

The long, tube-shaped organ in the abdomen that is part of the digestive tract. The bowel has two parts: the small and large bowel. The large bowel includes the colon and the rectum.

A passage or airway in the respiratory tract that carries air into the lungs.

Inflammation in the digestive tract….

A surgeon who specialises in treating diseases of the urinary tract and sex organs in males, and the urinary organs in females….

Cells that line parts of the urinary tract, such as where the kidney joins the ureter, in the ureter itself, in the bladder and in some parts of the urethra. This forms a watertight lining. Also called transitional cells….