Human body to comparative physiology and ecophysiology. Most recently, evolutionary physiology has become a distinct subdiscipline. Human body The human body is the structure of a human being. It is composed of many different types of cells that together create tissues and subsequently organ systems. They ensure homeostasis and the viability of the human body. It comprises a head, neck, trunk (which includes the thorax and abdomen), arms and hands, legs and feet. The study of the human body involves anatomy, physiology, histology and embryology. The body varies anatomically in known ways. Physiology focuses on the systems and organs of the human
Uniform Anatomical Gift Act the requirement of the witnesses. Medical examiners and medical professionals who cared for a patient upon their death, previously were permitted to remove a part of a body if there was no known next of kin, or if the body was unidentified. This change is to encourage the practice of allowing an anatomical gift to be made by a notation on a driver's license. The first Uniform Anatomical Gift Act was created after the first successful heart transplant in 1967; the operation was performed by Dr. Christiaan Barnard. In 1968, Congress approved of the UAGA and recommended that all states