recognized the vital role of the internal environment and suggested that the objective of mechanisms within the body is to preserve the constant conditions of the internal environment.
Claude Bernard, a French physiologist introduced the term, milieu interieur which translates to internal environment.
Bernard theorized that the regulation or fixity of an organism's internal environment was a crucial aspect of the organism's survival.
He laid the foundation for better understanding of homeostasis which is the regulation of the internal environment in response to fluctuations in the external environment.
