what does physiology
Oil painting depicting Claude Bernard, the father of modern physiology, with his pupils. Physiology (/ËfÉªziËÉlÉdÊi/; from Ancient Greek ÏÏÏÎ¹Ï (physis), meaning 'nature, origin', and -Î»Î¿Î³Î¯Î± (-logia), meaning 'study of') is a scientific study of normal mechanisms, and their interactions, which operate within a living system.