khaite suede calfskin medium olivia hobo toffee 1778305 loewe grained calfskin small puzzle edge bag sand 1844035 louis vuitton monogram thames pm 1816979 goyard goyardine belvedere ii pm messenger bag black gold 1883962 christian dior embroidered 3d macrame d lace sun medium book tote black 1887042 tb new gold brick bag gucci ophidia medium top handle bag 23027 hermes suede goatskin chelsea ankle boots 37 beige gobi 1806140 louis vuitton lv x tm monogram multicolor onthego mm white 1802744 miumiu women loafer 21432 loewe supple calfskin small madrid bag black 1831709 prada spazzolato rois sfumato monolith 55mm derby loafers 385 black argento 1739957 gucci calfskin matelasse small gg marmont shoulder bag wild rose 1755620 evelyne 165088 hermes 24 24 29 baghigh end grade 36941 prada vitello daino small shoulder bag white 1884691 chanel metallic lambskin quilted mini side note flap grey 1822095 louis vuitton reverse monogram giant onthego mm 1821563 diorevolution necklace 24470 miumiu medium arcadie matelasse nappa baghigh end grade 21018 胃切除后为什么还能消化shiwu?_奇妙的人ti - 棒子小说网
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胃切除后为什么还能消化shiwu?

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胃切除后为什么还能消化食wu?

食wu的消化过程是十分复杂的,胃起了很重要的作用。医生在zuo胃切除于术时以己考虑到这一点,如果不是严重的胃癌,会尽可能多地保留残胃。一般切去2/3左右,然后把胃和chang接起来。这样,胃bu分切除后,残胃不用几年就会"再生"长大,几乎能达到以前一样大小,对消化食wu影响不大。如果把胃全切了,肯定会影响消化。但是胃的作用主要在"碾磨"cu食wu和分mibu分消化酶,还有许多消化酶是由肝、胰所分mi的,主要xi收在小chang里进行。所以,胃即使全bu切掉,只要进食liu质或稀薄的半liu质食wu,在小chang里照样可以被消化xi收。

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