physiology vs system

physiology

noun
  • A branch of biology that deals with the functions and activities of life or of living matter (as organs, tissues, or cells) and of the physical and chemical phenomena involved. 

system

noun
  • A set of body organs having a particular function. 

  • A set of equations involving the same variables, which are to be solved simultaneously. 

  • A set of alters, or the multiple (“the individual with multiple personalities due to, for example, a dissociative personality disorder”) who contains them. 

  • Preceded by the word the: the mainstream culture, controlled by the elites or government of a state, or a combination of them, seen as oppressive to the individual. 

  • A set of staves linked by a brace that indicate instruments or sounds that are to be played simultaneously. 

  • A collection of organized things; a whole composed of relationships among its members. 

  • A planetary system; a set of planets orbiting a star or star system 

  • A set of rules for a tabletop roleplaying game. 

  • A comprehensive and logically organized set of propositions or philosophical beliefs. 

  • A method or way of organizing or planning. 

  • A set of hardware and software operating in a computer. 

How often have the words physiology and system occurred in a corpus of books? (source: Google Ngram Viewer )