Belly

Belly is a common term for the part of the torso between the chest and the pelvis, roughly corresponding to the abdomen in anatomical terms. The belly includes the abdominal wall at the front and sides and the abdominal cavity beneath the diaphragm. It is bounded superiorly by the diaphragm and lower ribs, inferiorly by the pelvic brim, and laterally by the flanks.

The contents of the belly include major digestive organs such as the stomach, small and large intestines, liver, gallbladder, pancreas, and spleen. The abdominal cavity also houses the kidneys (partially), urinary tract components, and portions of the reproductive system in some individuals. The belly contains a network of blood vessels and nerves and is lined by the peritoneum in many areas. The umbilicus, or belly button, marks the former connection to the placenta during fetal development.

Muscular and connective tissues form the abdominal wall, consisting of the external, internal, and transverse oblique muscles, along with the rectus abdominis and the pelvic floor muscles. This musculature supports posture, protects internal organs, and assists in respiration, coughing, and lifting.

Common medical considerations involving the belly include abdominal pain, indigestion, gastritis, appendicitis, hernias, and conditions affecting the liver, pancreas, or intestines. Treatment and prognosis depend on the underlying cause and may range from lifestyle adjustments to medical or surgical intervention.

In culture, the term appears in phrases such as belly dancing and informal references to the belly or tummy. The belly is a practical, everyday term for the region that encompasses a complex set of organs and structures critical to digestion, protection, and overall bodily function.