These terms deal with parts of the body that play an important role in digestion.
Anus: The opening of the rectum to the outside of the body.
Bowel: Another word for intestines. The word "bowel" comes from the Latin word "botulus" which means "sausage." It was called this because to the Romans, the outside of the intestine looked like a sausage.
Cecum: Connected to the appendix, this pouch marks the beginning of the large intestine.
Colon: This is a part of the large intestine that runs from the cecum to the rectum. It is an extensive hollow tube that removes water from digested food so it can be reused by the body. The remaining solid waste or stool moves through the colon to the rectum, leaving the body through the anus.
Duodenum: This is the first part of the small intestine. It is found before the pylorus and after the jejunum. The duodenum was named for its size and was originally called the dodeka-daktulon, which in Greek meant twelve fingers.
Esophagus: Also known as the gullet, the esophagus is a tube that connects the pharynx with the stomach. It is found behind the trachea, and in front of the spine. As a person swallows, the muscular walls of the esophagus contract and push food down into the stomach. There are also glands that line the esophagus and produce mucus, which also aids in swallowing. Esophagues comes from the Greek word oisophagos. It can be broken down further to oisein, meaning to bear or carry, and phagein, which means to eat.
Gallbladder: This is a pear-shaped organ found below the liver. It stores an important digestive enzyme, bile, which is secreted by the liver. After consuming a meal with fats in it, the gallbladder will deliver bile through bile ducts into the intestines to help with digestion.
Ileum: The ileum is the lowest part of the small intestine. It can be found after the duodenum and jejunum, just before the colon.
Jejunum: Part of the small intestine. It is half-way down the small intestine between its duodenum and ileum sections.
Large intestine: Found after the small intestine. It is termed the large intestine because it is wider than the small intestine.
Liver: This is an organ found in the upper abdomen. It helps with digestion and removes waste products and worn-out cells from the blood. It is the biggest solid organ in the body weighing about three-and-a-half pounds.
Pharynx: The pharynx is a funnel-shaped tube of muscle tissue between the oral cavity and the esophagus. It is a passageway for air, liquids and food.
Small intestine: The part of the digestive tract found after the stomach and before the large intestine. This is where most nutrients are absorbed from food.
Trachea: A tube-like portion of the respiratory tract that connects the voice box or larynx to the beginning of the lungs. It is actually part of the respiratory system but it's listed here because it starts at the back of the mouth alonside the esophagus.