Physiology is the branch of biology that deals with the functions and processes of living organisms, both animals and plants. It's biology in motion.

Physiology includes everything from how a single cell functions, to what makes your nerve receptors work, how your pancreas releases insulin, and what happens to your muscles when you exercise. Technology has made for great leaps in the science of physiology. The electron microscope, for instance, allows you to see down to even the molecules of the cell, and radioactive isotopes provide the means to track the movement of substances within an organism.

Definitions of physiology
  1. noun
    the branch of the biological sciences dealing with the functioning of organisms
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    the branch of neuroscience that studies the physiology of the nervous system
    the branch of physiology that studies the circulation of the blood and the forces involved
    the branch of physiology that studies the mechanics and anatomy in relation to human movement
    the branch of physiology that studies muscles
    type of:
    biological science, biology
    the science that studies living organisms
  2. noun
    processes and functions of an organism
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    type of:
    bodily property
    an attribute of the body
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