The major organs of the abdomen include the small intestine, large intestine, and stomach. Together, these three turn nutrients into usable energy, as well as help dispose of solid waste.

Learn about the abdomen, the part of the body that contains the gastrointestinal tract, the accessory organs, and the abdominal muscles. Explore the areas, bones, vasculature, and accessory organs of the abdomen with diagrams and quizzes.

The abdomen refers to the region between the pelvis (pelvic brim) and the thorax (thoracic diaphragm) in vertebrates, including humans. The space constituting the abdomen is termed the abdominal cavity.

The abdomen is a hollow, fluid-filled body cavity that holds and protects vital organs. Learn more about your abdomen, like how to keep it healthy.

Directly below the liver, the stomach stores food and prepares it for digestion. In the stomach, food mixes with digestive juices. The stomach muscles churn this mix, breaking it down further...

abdomen, in human anatomy, the body cavity lying between the chest or thorax above and the pelvis below and from the spine in the back to the wall of abdominal muscles in the front. The diaphragm is its upper boundary. There is no wall or clear-cut boundary between it and the pelvis.

The abdomen is the body region found between the thorax and the pelvis. Its superior aperture faces towards the thorax, enclosed by the diaphragm. Inferiorly the abdomen is open to the pelvis, communicating through the superior pelvic aperture (pelvic inlet).

Your abdominal muscles are strong bands of muscles lining the walls of your abdomen (trunk of your body). They’re located toward the front of your body, between your ribs and your pelvis. Your abdominal muscles have many important roles, including supporting your trunk, helping with movement and holding your organs in place.

The digestive organs in the abdomen work together to absorb nutrients and move food through the digestion process. They include the stomach, gallbladder, liver, pancreas, intestines, and urinary...