Isibindi Human: lokuphatselene nesakhiwo nemsebenti

isibindi womuntu unesibopho ukuthuthukiswa amakhemikhali amasha kanye iwukudambisa ubuthi kanye nemikhiqizo lokugayeka kokudla emzimbeni womuntu. Le misebenzi ibalulekile.

Indawo kwesibindi kubantu oluhambisana ukuhamba kwegazi emathunjini, okuyinto athwala izakhi. Lezi izinto esikuthola kusukela ukudla. Ngakho, ukuze ubuyele inhliziyo namaphaphu kusukela esiswini igazi ikani, kokuba uhlelo ngaphambilini emithambo yegazi okuholela kwesibindi.

Kutholwe ngokuqondile ngenhla emzimbeni diaphragm. isibindi Human ivikelwe izimbambo aphansi ekulimaleni. Ngaphansi kwezimo ezivamile asikwazi wazizwa. Nokho, sinombono ezinye izifo kukhona nokwanda emzimbeni, futhi uma ucindezela ku esiswini kuba kalula avelayo.

Sakhiwo isibindi womuntu

Lesi sitho iyona enkulu kunazo zonke emzimbeni. isibindi lomuntu isisindo kusuka kg 1.36 ukuze 1,81.

Emzimbeni ahlukanise phakathi ezimbili ophumile ndawo. I Lobe kwesokudla isibindi ukuze elise ngaphezulu nakuyo phezulu ohlangothini abafanele we peritoneum. Ohlangothini lwesobunxele (engezansi) esifundeni ifinyelela isikhungo ngakwesokunxele.

isitho amaseli ukwenza imisebenzi kwi nasezintweni ezincane kakhulu, ngalokho lunikeze izinqubo ebaluleke kakhulu ekuphileni. bebizwa "hepatocytes" Ngo amagama wezokwelapha. Umsebenzi wabo ehlangene izinto eziyinhloko: amafutha, amaphrotheni kanye carbohydrate. Ngaphandle kwalezi izakhi zomzimba ngeke kube khona.

Amaphrotheni abaluleke kakhulu ngokuqondene labahlanganyela ngayo ukudalwa kanye nokubuyiselwa amaseli, ukwakheka kwama-hormone, ukuthuthukiswa enzyme.

Amakhabhohayidrethi imelelwa ikilasi enkulu amakhemikhali. Zakhiwa ezintathu ama-athomu: hydrogen, yekhabhoni nomoya-mpilo. Amakhabhohayidrethi aguqulwa zibe ushukela amafomu ahlobene eduze. Omunye wabo - glucose, kanti eyesibili - glycogen. Ukungabi ushukela egazini nomthelela omubi kakhulu ukusebenza kwengqondo. Futhi kungenzeka overabundance yawo egcinwe ngesimo glycogen.

Futhi kubalulekile umzimba kanye amafutha. isibindi Human iguqula wabayisa amafomu ofanele yokutakula kwezicubu adipose, ungqimba ongama. Ngaphezu kwalokho, lo mkhiqizo iyindlela zokonga amandla.

Vienna ungqimba ihlanganisa amaseli akhethekile (Kupffer) enza umsebenzi cleaner igazi uhlanzekile namagciwane. Ngaphezu kwalokho, awathatha ngokujulile corpuscles obomvu ezingadingekile futhi udlulise ukuba ukucutshungulwa hepatocytes.

Ngo inqubo ukuguqulwa kanye byproducts kukhiqizwa. Ikakhulukazi, i-ammonia kuyinto into enobuthi. Isibindi amaseli iwukudambisa it. Lokhu kukhipha umkhiqizo ephephile - urea - ubuyele emuva emgudwini wegazi. Umzimba nangamanoni, nangegazi ziboniswa ngendlela Bile.

Ukuze kulondolozwe ukusebenza njalo imisebenzi futhi lunikeze amandla ukuze kwezicubu zomzimba liyadingeka ukugeleza engaguquki glucose. Ezingeni layo aphansi kuleli cleavage carbohydrate futhi kwakhiwa it is amaprotheni eside. Ngenxa ukusetshenziswa okusheshayo namaprotheni kwezicubu eziningi sekuqalile ukusetshenziswa ngesimo umthombo okunye imikhiqizo ukugaya amafutha. Le mikhiqizo abizwa ngokuthi "ketones".

Nge ukuntula glucose akhiqizwa bese uyiswa kwesibindi izicubu okunamafutha. emizimbeni ketone, ime phandle kwegazi ngokushesha saqala ukuthi asetshenziswe imisipha, ubuchopho, inhliziyo nezinye izicubu njengoba umthombo energy.

Usuku ngalunye, isibindi bukhipha Bile cishe ilitha. Lo mkhiqizo iqukethe inqwaba yizici zamakhemikhali. Bile ehilelekile ukugayeka kwamafutha, iyingxenye uhlelo excretory.

Isibindi ingenye izitho ezibaluleke kakhulu. Ngaphezu kwalokho, yena ohilelekile izinqubo umzimba, abangababi bemisebenzi yaso kuba ukuhlunga igazi futhi zilondolozwe, ukwakheka Bile, izinqubo wokugaya ukudla.