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cells,tissue terms
cells,tissue & membrane medical terminology
Question | Answer |
---|---|
the smallest structural unit of living matter capable of functioning independently | cell |
group of similar cells arranged w/intercellular substance between them specialized to perform a particular function | tissue |
surface layer of the cytoplasm of a cell | cell membrane |
the study of the structure,function,multiplication & pathology of cells | cytology |
the central structure of a cell enclosed in a membrane which is essential to cellular functions such as reproduction & protein synthesis | nucleus |
the living matter in all cells which is an organized complex of organic/inorganic substances which are too small for resolution w/an ordinary light microscope | protoplasm |
a membrane which allows some molecules to pass thru but not others | semi-permeable membrane |
a small cavity/space in cell protoplasm containing air/fluid | vacuole |
substances such as acid,bases & salts which in solution conduct an electrical current | electrolytes |
a relatively stable state of equilibrium | homeostasis |
particles move to equalize concentration throughout | diffusion |
particles move thru a filter/membrane that prevents passage of certain molecules | filtration |
solvent molecules pass thru a semi-permeable membrane to equalize concentration on each side | osmosis |
process of engulfing a solid particle by forming a pocket w/the cell membrane | phagocytosis |
process of engulfing a liquid particle by forming a pocket w/the cell membrane | pinocytosis |
acts as a barrier from heat,cold,water loss & bacterial invasion; aids in secretion/excretion | epithelial tissue |
protects,supports,transports & bonds the body together | connective tissue |
moves body by contraction/relaxation of pairs | muscle tissue |
conducts impulses thru out the body | nerve tissue |
strands of dna bearing the genes which carry the herditary characteristics | chromosomes |