Human anatomy is the study of the structure of the human body. It includes gross anatomy which is the study of organs and structures visible to the naked eye, histology which examines tissues at a microscopic level, neuroanatomy which focuses on the nervous system, and developmental anatomy which looks at the development of structures during gestation and childhood. Some important historical figures in the field include Hippocrates who established ethical medical practice, Juan Valverde de Amusco who published works on the structure and function of the body, and Andreas Vesalius whose book De humani corporis fabrica was a key text in the 16th century that improved upon then-current anatomical knowledge. Modern anatomical research incorporates various imaging technologies like X