Physiology of human body

Physiology is the study of the function of the normal human body. It is closely linked with the study of all living things in the subject of biology; as well as this there is the work of the cytologist, interested in details of the structure of the cells and that of biochemist, dealing with the chemical changes and activities of the cell and investigating the complex chemistry of life, and there is physics, the study of the physical relation and movements taking place in the body.

   The body is made up of many tissues and organs, each having its own particular function to perform. The cell is the unit or the smallest element of the body of which all parts are comprised. The cell are adapted to perform the special function of the organ or tissue they are in. some cells, such as those in the nervous system and muscle, are very specialized indeed: others, such as those in the connective tissues, are less highly developed. As a general rule the most highly specialized cells are the least able to withstand damage and also are the most difficult to repair or replace.