Claudius Galen (mar 29, 129 – mar 29, 199)

Description:

- A Roman physician

- Believed that the body was regulated by four fluids or humors: blood, phlegm. black bile, and yellow bile

- Believed that an imbalence in the humors resulted in illness

- Described symptos of inflammation and stuidied infectious diseases

- Dissected animals and determined function of muscles, kidney, and bladder

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