tkani
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prezentatsiya powerpoint tkani tkan – eto gruppa kletok i mejkletochnogo veshestva, kotorie imeyut sxodnuyu strukturu i vipolnyayut opredelennie funktsii v organizme. kajdaya tkan formiruetsya iz opredelennix uchastkov zarodisha. mejkletochnoe veshestvo virabativaetsya kletkami tkaney i okrujaet ix. ono uchastvuet v vipolnenii tkani svoey funktsii. u raznix tkaney raznoe sootnoshenie mejdu kolichestvom kletok i mejkletochnogo veshestva, eto yavlyaetsya odnoy iz vajnix xarakteristik tkani. epiteliy, ili epitelialnaya tkan. ploskiy epiteliy vistilaet alveoli, plevru, bryushinu, chastichno rotovuyu polost i prepyatstvuet proniknoveniyu v organizm chujerodnix agentov, a takje uchastvuet v gazoobmene (v legkix). funktsii epitelialnoy tkani: pokrovnaya (mnogosloyniy orogovevayushiy epiteliy koji...
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