by Jill Beavers-Kirby

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    Hi, my name is Jill Beavers-Kirby, and today we're going to talk about pathophysiology. So what is pathophysiology? Well, it's broken down in Greek words, one meaning pathos which means disease, and physiology which means the study of all structural and functional changes in cells, tissues and organs. Anytime you see -ology on the end of a word, you want to know that that's the study of something. So pathophysiology are cellular and structural changes within the body and the effects that these changes cause on somebody. So then what is disease? Disease is a pathological disorder. It is not caused from trauma or injury. It can affect all the structures in all parts of an organism. It is, once again, not a result of a physical injury. So the features of disease include etiology, the pathogenesis, the morphological changes, and the clinical signs and symptoms. So etiology. Once again we have the -ology ending on the end, so etiology is the study of why things are. So etiology can be biologic such as bacteria or viruses, they can be physical such as from trauma or burns, they can be chemical from alcohol or poisons, it can be inherited such as some types of heart disease can be inherited from family members, or they can be congenital which simply means that they've been there since birth. So what is pathogenesis? Many diseases are thought to be of a genetic predisposition or from an environmental cause. So from an environmental exposure, or it's just something in your genes or your DNA. So pathogenesis and etiology, even though they mean two different things, you might hear these two words used interchangeably. Just remember that etiology is the study of the cause of the disease whereas the pathogenesis is what is causing the...

    About the Lecture

    The lecture Pathophysiology by Jill Beavers-Kirby is from the course Physiological Integrity. It contains the following chapters:

    • Pathophysiology
    • Manifestations of Disease
    • Diagnostic Tests
    • Quality of Diagnostic Tests
    • Evolution of a Disease

    Included Quiz Questions

    1. False
    2. True
    1. Pain
    2. Fever
    3. Hypertension
    4. Erythema

    Author of lecture Pathophysiology

     Jill Beavers-Kirby

    Jill Beavers-Kirby

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