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16 Cards in this Set
- Front
- Back
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physiology |
study of the functions of living things |
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2 approaches to physiology |
purpose mechanism * |
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homeostasis |
stable conditions inside the body needed for survival |
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anatomy |
study of the structure of the body |
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levels of organization |
atoms molecules cells tissue organ body system organism |
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cell |
fundamental unit of both structure and function; capable of all life processes |
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organism |
independent living entities |
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differentiates |
becomes specialized to carry out a particular function |
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basic cell functions |
obtain nutrients perform chemical reactions eliminate waste synthesize substances for growth exchange materials between cells ...and within cells respond to changes in environment (reproduce) |
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enzyme |
specialized protein to speed up particular chemical reactions in body |
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4 types of tissue |
muscle nervous epithelial connective |
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muscle tissue |
contracts 3 types: skeletal cardiac smooth |
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nervous tissue |
electrical impulses |
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epithelial tisse |
exchange materials; barrier epithelial sheets and secretory glands |
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connective tissue |
few cells, lots of extracellular space |
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lumen |
cavity within hollow tube or organ |
