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cparada
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Anatomy
the study of the structure of the body
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Physiology
Literally the study of the function; considers the ways living organisms perform vital activities
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Homeostasis
The maintenance of a relatively internal environment
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Histology
the study of tissues
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Atom
the smallest, stable unit of matter
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Chemical
An intracellular structure that performs a specific function or group of functions
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Cell
The smallest living unit in the human body
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Tissue
A collection of specialized cells and cell products that perform a specific function
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Positive Feedback
Mechanism that increases a deviation from normal limits following an initial stimulus
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Negative Feedback
Corrective mechanism that opposes or reverses a variation for normal limits and restores homeostasis
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Extracellular fluid
All body fluid other than that contained within cells; includes plasma and interstitial fluid
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Interstitial fluid
Fluid in the tissues that fills the spaces between cells
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Pathology
the study of the effects of diseases on organ or system functions
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Organ
combinations of tissues that perform complex functions
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Organism
An individual living thing that can react to stimuli, reproduce, grow, and maintain homeostasis. It can be a virus, bacterium, protist, fungus, plant or an animal.
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Organ system
A group of organs that work together to carry out a particular task.
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External environment
The environment outside of the organism, which pertains to the physical, chemical, biological and social conditions surrounding the organism.
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Internal environment
(1) The outside of the cells inside the body of an organism.(2) The extracellular fluid environment.
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Chemical
- (1) A substance made up of chemical elements or produced from a chemical process
- (2) A drug, especially illicit or addictive drug
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