Organs are structures inside your body that have specialized jobs. They include internal organs like your heart and brain, plus external ones like your skin. In this section, you’ll be introduced to the heart, brain, and other major organs of the human body.

Organs exist in … Since there is no single standard definition of what constitutes an organ, the number of organs vary depending on how one defines an organ. For example, this list contains more than 78 organs (about …