pishevaritelnaya sistema i protsess pishevareniya

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powerpoint presentation pishevaritelnaya sistema i protsess pishevareniya: blagodarya nalichiyu pishevaritelnoy sistemi proisxodit slojniy fiziologicheskiy protsess, v xode kotorogo pisha, postupayushaya v organizm, podvergaetsya fizicheskim i ximicheskim izmeneniyam i vsasivaetsya v krov. danniy protsess nazivaetsya pishevareniem. sistemu organov pishevareniya obrazuyut rotovaya polost, pishevod, jeludok, kishechnik, pishevaritelnie jelezi. rotovaya polost: v rotovoy polosti proisxodit pervichnaya obrabotka pishi, kotoraya sostoit v eyo mexanicheskom izmelchenii s pomoshyu yazika i zubov i prevrashenii v pishevoy komok. slyunnie jelezi: slyunnie jelezi videlyayut slyunu, fermenti kotoroy nachinayut rassheplenie soderjashixsya v pishe uglevodov. glotka i pishevod: cherez glotku i pishevod pisha popadaet v jeludok, gde pod deystviem jeludochnogo soka perevarivaetsya. pishevarenie v jeludke: jeludok predstavlyaet soboy tolstostenniy mishechniy meshok, naxodyashiysya pod diafragmoy v levoy polovine bryushnoy polosti. putyom sokrasheniya stenok jeludka ego soderjimoe smeshivaetsya. mnojestvo jelyoz, sosredotochennix v slizistoy stenke jeludka, videlyayut jeludochniy sok, soderjashiy fermenti i solyanuyu kislotu. posle etogo chastichno perevarennaya pisha popadaet v peredniy otdel …

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e jelezi, mikroskopicheskie jelezi jeludka i kishechnika, podjeludochnaya jeleza i pechen. pechen: pechen – samaya krupnaya jeleza chelovecheskogo organizma. ona raspolagaetsya sprava pod diafragmoy. v pecheni virabativaetsya jelch, kotoraya po protokam postupaet v jelchniy puzir, gde nakaplivaetsya i po mere nadobnosti postupaet v kishechnik. pechen zaderjivaet yadovitie veshestva i zashishaet organizm ot otravleniya. podjeludochnaya jeleza: podjeludochnaya jeleza naxoditsya mejdu jeludkom i dvenadtsatiperstnoy kishkoy. sok podjeludochnoy jelezi soderjit fermenti, rassheplyayushie belki, jiri i uglevodi. v sutki videlyaetsya 1–1,5 litra soka podjeludochnoy jelezi. pervaya pomosh pri otravlenii: v sluchae popadaniya v pishevaritelnuyu sistemu nesvejix produktov ili yadovitix veshestv (mishyaka, soedineniy medi, prirodnix yadov) nastupaet pishevoe otravlenie. ostrie otravleniya trebuyut primeneniya ekstrennix mer dlya bistrogo udaleniya yada eshyo do priezda vracha: promivanie jeludka, vizivanie rvoti

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powerpoint presentation pishevaritelnaya sistema i protsess pishevareniya: blagodarya nalichiyu pishevaritelnoy sistemi proisxodit slojniy fiziologicheskiy protsess, v xode kotorogo pisha, postupayushaya v organizm, podvergaetsya fizicheskim i ximicheskim izmeneniyam i vsasivaetsya v krov. danniy protsess nazivaetsya pishevareniem. sistemu organov pishevareniya obrazuyut rotovaya polost, pishevod, jeludok, kishechnik, pishevaritelnie jelezi. rotovaya polost: v rotovoy polosti proisxodit pervichnaya obrabotka pishi, kotoraya sostoit v eyo mexanicheskom izmelchenii s pomoshyu yazika i zubov i prevrashenii v pishevoy komok. slyunnie jelezi: slyunnie jelezi videlyayut slyunu, fermenti kotoroy nachinayut rassheplenie soderjashixsya v pishe uglevodov. glotka i pishevod: cherez glotku i pishevod ...

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