Human hanta: sifa da aiki

mutum hanta ne ke da alhakin cin gaban sabon sinadarai da kuma neutralize da gubobi da kuma kayayyakin da metabolism a cikin jikin mutum. Wadannan ayyuka ne masu muhimmanci.

Location na hanta a cikin mutane yayi dace da motsi na jini daga hanjinsu, wanda daukawa gina jiki. Wadannan abubuwa suna tunawa daga abinci ci. Saboda haka, don samun koma cikin zuciya da kuma huhu daga jini Can ciki, da ciwon baya venous tsarin da zai kai ga hanta.

Located kai tsaye sama da jiki na diaphragm. Human hanta kare da ƙananan karankarman ƙirji daga lalacewa. Karkashin al'ada yanayi ba za a iya ji. Duk da haka, a kan bango na wasu cututtuka akwai wata karuwa a cikin jiki, da kuma lokacin da ka latsa a ciki shi ne sauƙin detectable.

Tsarin mutum hanta

Wannan sashin jiki ne mafi girma a cikin jiki. Human hanta yana da wani nauyi na daga 1.36 zuwa 1,81 kg.

A cikin jiki rarrabe tsakanin biyu protruding yankin. The dama lobe daga cikin hanta zuwa fiye da kuma located a fadin saman Game da gefen peritoneum. A gefen hagu na (m) yankin ya kai hagu cibiyar.

Gabar Kwayoyin yi ayyuka a kan wani microscopic matakin, game da shi, samar da mafi muhimmanci matakai domin rayuwa. an kira su "hepatocytes" A likita terminology. Su aiki ne da alaka da babban abubuwa: fats, sunadaran da carbohydrates. Ba tare da wadannan abubuwa jiki ba zai iya zama.

Sunadaran suna da muhimmanci sosai dangane da su sa hannu a cikin halittar kuma da maido da Kwayoyin, da samuwar hormones, ci gaban enzymes.

Carbohydrates wakilta wani babban aji na sinadarai. Sun kunshi uku atoms: hydrogen, carbon da oxygen. Carbohydrates ana tuba zuwa sukari a hankali alaka siffofin. Daya daga cikinsu - glucose, da kuma na biyu - glycogen. Rashin sukari a cikin jini ne sosai mummunan tasiri a kan aiki na kwakwalwa. Kuma ta overabundance iya adana a cikin nau'i na glycogen.

Har ila yau muhimmanci ga jiki da kuma fats. Human hanta sabobin tuba su a cikin siffofin dace domin dawo da na adipose nama, da subcutaneous Layer. Bugu da ƙari, wannan samfurin ne a wajen kare makamashi.

Vienna Layer rufe musamman Kwayoyin (Kupffer) yin aiki injin jini tsarkakewa daga kwayoyin cuta. Bugu da kari, sun dauki ba dole ba ja corpuscles da kuma aika da su ga aiki na hepatocytes.

A canji tsari da kuma byproducts ake samar. A musamman, ammonia ne mai guba abu. Hanta Kwayoyin neutralize shi. Wannan samar da wani hadari da samfur - urea - koma a cikin jini. Metabolism na kitse da jini ake nuna a cikin nau'i na bile.

Don kula da akai wasan kwaikwayon na ayyuka da kuma samar da makamashi a jikin kyallen takarda ake bukata kwari kwarara daga glucose. A mafi ƙasƙanci matakin a cikin tsakiyan nonon mata na carbohydrates, kuma shi ne kafa ƙara sunadaran. Saboda da m amfani da sunadarai a da yawa kyallen takarda sauya don amfani a cikin nau'i na madadin tushen mai narkewa kayayyakin. Wadannan kayayyakin da ake kira "ketones".

Tare da rashin glucose ake samar da hawa zuwa hanta daga m nama. Ketone jikinsu, a tsaye daga cikin tsari dabam dabam nan da nan za a fara da za a yi amfani da tsokoki, da kwakwalwa, zuciya da kuma sauran kyallen takarda a matsayin makamashi Madogararsa.

Kowace rana, da hanta secretes bile kamar lita. Wannan samfurin ƙunshi manyan yawan sinadaran da aka gyara. Bile ne da hannu a cikin narkewa na fats, shi ne wani ɓangare na da excretory tsarin.

A hanta ne daya daga cikin mafi muhimmanci gabobin. Bugu da kari, ta shiga a cikin tafiyar matakai na rayuwa, da aiki da shi ne zuwa tace da jini da adana, samuwar bile, da narkewa kamar tafiyar matakai.