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Etiology
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The origins or causes of illness
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Biopsychosocial Model
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Health and illness are consequences of the interplay of biological, psychological and social factors.
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Biomedical Model
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All illness can be explained on the basis of somatic bodily processes. Psychological and social processes are irrelevant to the disease process
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Biopsychosocial vs. Biomedical Models
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Biomed assumes mind and body are separate
Biomed also focuses on illness instead of promoting health
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Clinical Implications of the Biopsychosocial Model
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The practiciner must understand the social and psychological factors that contribute to illness in order to treat it properly.
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Acute vs. Chronic Illness
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Acute illnesses are short-term illnesses due to a viral or bacterial invader and usually curable. Chronic illnesses are slowly developing diseases that people live with for a long time and often can't be cured.
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Epidemiology
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The study of the frequency, distribution and causes of infectious and noninfectious disease in a population based on physical and social environment
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Morbidity
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The number of cases of a disease that exists at some given point in time
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Mortality
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Number of deaths due to particular cases
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Randomized Clinical Trials
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Experiments conducted by health practicioners to evaluate treatments or interventions and their effectiveness over time.
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Prospective Research
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Looks forward in time to see how a group of people change over time.
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Retrospective Research
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Looks backward in time in an attempt to reconstruct the conditions that led to a current situation.
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The Peripheral Nervous System
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Consists of all the nerves in the body and is made up of the somatic and autonomic nervous systems.
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Somatic Nervous System
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Voluntary; connects nerve fibers to voluntary muscles and gives the brain feedback in the form of sensory information about voluntary movement
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Autonomic Nervous System
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Involuntary; connects the central nervous system to all internal organs over which people do not have control. It is regulated by the Sympathetic and Parasympathetic Nervous Systems.
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