Physiology Essentials 100

Anatomy Study of body structures Physiology Study of how living organisms perform their functions Homeostasis existence of a stable internal environment Pathology Study of abnormal body structure Pathophysiology Study of abnormal body function Disorder (or condition, illness, sickness) An irregularity, disturbance or interruption of normal - refers to a disruption of regular bodily function (e.g. arrhythmia) Disease A particular distinctive process in the body with a specific cause and characteristic symptoms (e.g. cardiovascular disease) Sign Objective indication of disease (e.g. change in HR or BP) Symptom Subjective indication of disease (e.g. tiredness or nausea) Clincial manifestation Signs and symptoms Medical terminology - Universal language that enables scientists and/or clinicians to communicate with one another - Made up of word parts Word roots Basic, meaningful parts of a term that cannot be broken down into another term with another definition (e.g. kinein = movement) Prefixes Word elements that are attached at the beginning of words to modify their meaning but cannot stand alone (e.g. a = without) Suffixes Word elements or letters added to the end of a word or word part to form another term (e.g. ia = state or condition) hypo under hyper above a without brady slow tachy fast cardia heart derma skin gaster stomach athros joint therme heat