Anatomy is the branch of biology that studies the structure of living organisms. It focuses on the physical components of organisms, including organs, tissues, and cells. Understanding anatomy helps scientists and medical professionals learn how different parts of the body work together to maintain life. There are two main types of anatomy: macroscopic anatomy, which examines structures visible to the naked eye, and microscopic anatomy, which looks at structures that require a microscope to be seen. Anatomy is essential for fields like medicine, physiology, and biological research, as it provides a foundation for understanding how organisms function.