Tib neeg kev teeb tsa. Cov hnyuv thiab nws cov kev khiav dej num

Nyob rau hauv zaj lus qhia lub cev cov tub ntxhais kawm kawm nyob rau hauv kom meej cov qauv ntawm cov tib neeg txoj hnyuv nyob rau hauv cov duab. Qhov no yog vim li, vim hais tias qhov no lub cev tsis yog tsuas yog lub xeem txuas ntawm lub digestive system, kom ntseeg tau tshem ntawm cov zaub mov, tab sis kuj ua ib tug xov tooj ntawm ib qho tseem ceeb zog rau tib neeg lub cev. Piv txwv li, nws khoom siv tseem ceeb as-ham, muaj ib tug tib neeg immunoglobulin. Tag nrho cov qhov ntev ntawm txoj hnyuv yog kwv yees li 7-8 m. Qhov no loj yog tsis tsimnyog lub cev ntawm cov neeg, uas tau kawm cov qauv ntawm cov neeg. Cov hnyuv yog muab faib mus rau hauv nyias muaj nyias ib seem, uas muaj ib tug tshwj xeeb (albeit zoo xws li) qauv thiab muaj nuj nqi.

hnyuv

Ncaj qha los ntawm lub plab yog li ntawd-hu ua cov hnyuv. Nws tag nrho ntev ntawm 4-5 m, tab sis nws yog muab tso rau hauv lub plab mog loops. Cov hnyuv yog muab faib mus rau hauv lub duodenum, ib tug longitudinal thiab jejunum. Thaum pib ntawm lub me me hnyuv yog kwv yees li 3-4 cm nyob rau hauv txoj kab uas hla, thiab qhov kawg -. 2-2.5 cm Duodenum muaj tshwj xeeb keeb - outlets rau lub ducts ntawm lub gallbladder thiab lub siab. Xwm muab kev kho mob ntawm uas yog tseeb qauv ntawm tus neeg. Hnyuv li no yuav yooj yim zom carbohydrates, cov rog thiab cov proteins. Thaum lub sij hawm hnub, tib neeg lub cev ua txog 3 litres ntawm alkaline digestive kua txiv, uas yuav pab nrog rau cov kev zom zaub mov. Tus qauv ntawm tib neeg plab hnyuv presupposes ib tug peculiar villi nyob rau hauv cov hnyuv. Lawv lawv tus kheej muaj me me lymphatic thiab cov hlab ntsha, uas yog absorbed nyob rau hauv cov zaub mov, cov vitamins thiab lwm yam tsim nyog cov ntaub ntawv.

Kev qhia ntau txog yuav tsum tau ua li cas rau tus tiv thaiv muaj nuj nqi ntawm cov hnyuv. Raws li rau nws xwb tsis muaj tshuaj, tab sis kuj cov kev tiv thaiv ntawm tib neeg lom. Qhov no yog hais tias cov quav phab ntsa muaj cov qog ntshav hauv uas neutralize tej yam tshuaj lom.

txoj hnyuv loj

Xaus undigested zaub mov yuav pab muab lub zoo meej qauv ntawm tus neeg. Cov hnyuv plays ib tug tseem ceeb luag hauj lwm nyob rau hauv tus txheej txheem no. Department entrusted no tseem ceeb heev txoj hauj lwm, hu ua tuab. Nws yog tseem nyob rau hauv peb qhov chaw: hauv lub qhov muag tsis pom, cov nyuv thiab qhov quav. Lawv tag nrho ntev ntawm 1.5 m. Tus thawj handset tseem mus rau lub me me hnyuv, tab sis yog muab tso rau ntawm qhov nrov plig plawg uas tiv thaiv rov qab rau cov zaub mov. Tag nrho cov qhov ntev ntawm lub cecum - 8 cm. Nws muaj ib tug heev me me (0.5 cm) txheej txheem uas hu lub appendix. Nyob rau hauv nws cov phab ntsa muaj ib tug loj tus naj npawb ntawm cov qog o, thiab nws yog ib tug natural antimicrobial barrier. Nyob rau hauv lub appendix muab coliform kab mob - ib tug tseem ceeb feem ntawm lub cev. Thaum koj rho tawm ib tug txheej txheem ua txhaum tib neeg qauv, hnyuv li no tsis tu tsis tseg rau siab tiv thaiv lub cev. Muaj yuav ua tau teeb meem nrog lub cev.

Direct thiab ntug hnyuv

Hnyuv hnyuv muaj ib tug ntug rau hauv uas yog tsim nyob rau cov quav. Tsis zoo li nyias, nws tsis muaj plaub. Nws muaj ntau hnoos qeev, uas yuav pab kom cov quav yooj yim rau koj tsiv mus rau lub tom ntej no department - qhov quav. Qhov chaw no yog tsis ncaj heev, vim hais tias nws muaj ib txhab feem hu ua ampoule. Xaus hnyuv tso cai ntawm lub qhov quav nyob rau hauv lub qhov quav kwj dej. Quav zaus nyob ntawm ntau yam, tab sis nyob rau hauv lub qub xeev nws yog 1 lub sij hawm nyob rau hauv 2-3 hnub, los yog txhua txhua hnub.