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23 Cards in this Set
- Front
- Back
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state of altered physiologic functioning
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disease
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an abstract term, an average value & some variation either increase or decrease this value
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normal
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a subjective complaint
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symptom
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objective observation
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sign
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pt functions normally even though disease is well established
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subclinical stage
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severe but self limiting
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acute
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continuous long-term process
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chronic
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an aggravation of S&S of disease
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exacerbation
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decrease in severity of symptoms
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remission
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the causes of a disease
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etiology
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the method by which a disease develops
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pathogenesis
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secondary to change produced by original disease
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complication
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study of disease in large populations
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epidemiology
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disease present at birth due to genetics
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inherited
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disease due to errors in development
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congenital
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disease resulting from conditions occuring after birth
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acquired
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What transport method:
- requires a "carrier system" where substances (such as glucose) are carried across the cell membrane - Substances are not lipid soluble or are too large to pass through the membranes pores - moves from higher to lower |
Facilitated Diffusion
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What transport method:
- Moves substances across a cell membrane against a concentration gradient - From Lower to Higher - Requires ATP for energy - Example = Na - K pump |
Active Transport
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Method of cell function:
- cell membrane sucks up or ingests small amounts of extracellular fluid & particles - pockets close & break off to form fluid filled vacuoles in the cytoplasm - proteins enter cells this way |
Pinocytosis
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Method of cell function:
- Larger particles are "engulfed" - act as vacuum cleaners for the cellular environment - bacteria & debris is removed in this manner |
Phagocytosis
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Method of cell function:
- secretion of Intracellular substances into the Extracellular space - Important in removing cellular debris - Hormones are released this way |
Exocytosis
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- electric tension or pressure that exists on the sides of a membrane wall
- cations and anions on either side of the membrane create a "force" or pressure - measured in millivolts |
Membrane Potentials
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- Electrical activity or impulse generated by the force of ions moving across membrane
- "ion-specific" channels are used to generate action potentials - "slow" channels - "fast" channels - K, Na, C |
Action Potentials
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