Amathumbu omntu kunye ne-anatomy yayo

Ubumntu bomzimba luyingxenye yesondlo sesisu kwaye luqala kwi- pylorus yesisu kwaye iphelela ngokuvula kwangemva. Kwilungu elinjalo kukho ukungcola okupheleleyo kokutya kunye nokuxutywa kwazo zonke izinto zayo. Kukwafanelekile ukuba uqaphele ukuba ilungu le-intestinal lidlala indima enkulu kumzimba womzimba.

Uphi intumbo yomntu? Ibhunga elimelelwe lifumaneka kwingingqi yesisu (kwicandelo layo eliphantsi) kwaye lihlala inxalenye yalo. Njengoko kuyaziwa, ubude bomyinge womntu buba malunga neemitha ezine (ngexesha lobomi) kwaye malunga nama-500-800 amasentimitha emva kokufa. Kwiintsana, ubude bale nxalenye buhluka ukusuka kuma-340 cm ukuya ku-360. Ekupheleni konyaka wokuqala wobomi, kwanda malunga nama-50% kwaye kudlula ukukhula komntwana ngamaxesha angama-6-7.

Inatomy yomathumbu womntu

Isikhundla, isimo kunye nesakhiwo solu tshintsho kwilungu ngexesha lokukhula. Ubunzulu obuphezulu bokukhula kwawo kubonwa kwithuba eli-1 ukuya kwe-3 leminyaka. Oku kungenxa yokuba umntwana uhamba ngokukhawuleza kwisidlo esiqhelekileyo.

Inatomically intestine yomntu yahlula ngamasebe alandelayo:

• Thin;
• I-Thick.

Isebe lokuqala liyinxalenye yenkqubo yokutya, ephakathi kwekoloni nesisu. Kulo lungu, zonke iinkqubo ezisisiseko zokugcoba zenzeka. Ngegama layo, intlungu encinci ibangelwa kukuba iindonga zayo ziqine ngaphezu kweendonga zamathumbu amakhulu. Ukongeza, i-lumen nesigxina salesi sakhiwo nazo zincinci.

Ngaloo ndlela, intlungu encinane yomntu ihlukaniswe ngamacandelo alandelayo:

• 12-colon;
• Emile;
• Iliac.

Amathumbu amakhulu ayingxenye ekupheleni kwendlela yokugaya. Iyakuthinta ukungena kwamanzi kwaye ivelise iifesi ezivela kwi-chyme. Leli gama linikezelwa kulo mathumbu ngenxa yokuba iindonga zayo zininzi kuneendonga zesebe langaphambili. Kufuneka kuqatshelwe ukuba la magunya afunyenwe ngumgca we-muscular kunye nezicubu ezinxibelelwano. Ubuninzi bomathumbu amakhulu kunye ne-lumen yayo yangaphakathi (ububanzi) bugqithise ubukhulu bomathumbu amancinci.

Ikholoni yomntu ihlukaniswe ngamacandelo alandelayo:

• Iimfama kunye nesongezelelo sesondlo (isihlomelo);
• I-Colon enee-sub-departments ezihlukeneyo;
• Ikholoni ephakanyiswayo;
• Ikholoni ehambayo;
• Uboloni obuhlahlayo;
• Sigmoid;
• Ukuchaneka ngengxenye ebanzi, i-ampoule, kunye nesigxina se-tapering - umsele ongaphantsi ophelisa nge-anus.

Ubukhulu beengxenye ezisemgangathweni zamathumbu

Ubude bomathumbu amancinci bubonakala phakathi kwama-160-430 ngamentimitha. Njengomthetho, kwabasetyhini, eli lilungu lincinci. Ububanzi belo lilungu li-30-50 millimeters. Ubungakanani bamathumbu amakhulu buyaguquka kumitha eyi-1.4-1.6. Ubungakanani bayo kwicandelo lokuqala li-7-10 cm, kwaye ububanzi be-caudal buyi-4-6.

I-membrane yamangqamu enjalo ilungu liqela le-outgrowth-villi elithintela emathunjini emathumbu. Isikwere esinye seemitha se-intestinal surface accounts for approximately 20-40 villi.