The autonomic nervous system orchestrates the functions of internal organs such as the heart and gut, serving as a connection between the brain and the rest of the body. It is classified in two ...

The gallbladder is a small, pear-shaped organ in the upper-right abdomen. It stores and releases bile, which is a liquid the liver produces, to support digestion by helping to break down fats. The ...

The mesentery is an organ that attaches all the digestive organs in the abdomen. It connects much of the intestines to the back abdominal wall, holding them in place when a person stands upright. The ...

The digestive system's rhythms are controlled by body clock genes, as well as lesser-known regulators called noncanonical clock regulators. Researchers at Baylor College of Medicine aimed to ...

The circulatory system carries oxygen and nutrients throughout the body and removes waste. The lymphatic system helps fight disease by creating and moving white blood cells and antibodies. The ...