3 nhanho huru dzekuumba weti

Zvemukati

• 3 nhanho huru dzekuumba weti
• 1. Ultrafiltration
• 2. Kudzorerazve
• 3. Kuchengetedza
• Sei weti inobviswa

Weti chinhu chinogadzirwa nemuviri chinobatsira kubvisa tsvina, urea nezvimwe zvine chepfu kubva muropa. Izvi zvinhu zvinogadzirwa zuva nezuva nekugara kushanda kwemhasuru uye nedanho rekuzeya kwechikafu. Kana zvisaririra izvi zvaizoungana muropa, zvinogona kukonzera kukuvara kwakanyanya kunhengo dzakasiyana mumuviri.

Iyi nzira yese yekusefa kweropa, kubvisa marara uye kugadzira weti kunoitika muitsvo, idzo idiki idiki, nhengo dzakaumbwa sebhinzi dziri muzasi kwezasi. Tarisa uone 11 zviratidzo izvo zvinogona kuratidza kuti itsvo dzako hadzisi kushanda mushe.

Zuva rega rega, itsvo dzinosefa anenge 180 litita eropa uye dzinongoburitsa 2 litita eweti, izvo zvinogoneka nekuda kwenzira dzakasiyana dzekubvisa uye kudzoreredza zvinhu, izvo zvinodzivirira kubviswa kwemvura yakawandisa kana zvinhu zvakakosha zvemuviri.

Nekuda kweichi chiitiko chakaomarara chinoitwa neitsvo, hunhu weti iyo inobviswa inogona kubatsira kuwana mamwe matambudziko ehutano. Saka, tarisa izvo zvinogona kuratidzwa neshanduko huru muurini.

3 nhanho huru dzekuumba weti

Weti isati yabva mumuviri, inofanira kupfuura nemumatanho akakosha, anosanganisira:

1. Ultrafiltration

Ultrafiltration chikamu chekutanga chehurongwa hwekugadzira weti inoitika muphron, chidiki chidiki cheitsvo. Mukati meinefron imwe neimwe, tsinga diki dzeropa dziri muitsvo dzinopatsanuka kuita midziyo yakatetepa, iyo inogadzira banga, inozivikanwa seglomerulus. Iyi node yakavharwa mukati mefirimu diki inozivikanwa seye renal capsule, kana capsule ye Bowman.

Sezvo midziyo inova midiki uye midiki, kuwedzerwa kweropa mu glomerulus kwakanyanya uye nekudaro ropa rinosundidzirwa nesimba kumadziro emidziyo, ichizunzwa. Masero eropa chete uye mamwe mapuroteni, akadai sealbumin, akakura zvakakwana kuti arege kupfuura uye nekudaro anogara muropa. Zvese zvimwe zvinopinda muitsvo tubules uye inozivikanwa seye glomerular filtrate.

2. Kudzorerazve

Ichi chikamu chechipiri chinotanga munzvimbo inoenderera yeiyo renal tubules. Ikoko, chikamu chakanaka chezvinhu izvo zvakabviswa muropa zvichipinda mufirita zvakadzorerwa zvakare muropa kuburikidza neanoshanda mafambiro ezvekutakura, pinocytosis kana osmosis. Nekudaro, muviri unoona kuti zvinhu zvakakosha, senge mvura, glucose uye amino acids hazvibviswe.

Zvichiri mukati meichi chikamu, iyo filtrate inopfuura nepakati Henle, inova mamiriro mushure meiyo yakawedzera tubule umo zviwanikwa zvemaminerari, sodiamu uye potasium, zvinoiswa zvakare muropa.

3. Kuchengetedza

Muchikamu chino chekupedzisira chekugadzira weti, zvimwe zvinhu zvichiri muropa zvinobviswa ku filtrate. Zvimwe zvezvinhu izvi zvinosanganisira zvisaririra zvemishonga neammonia, semuenzaniso, izvo zvisingadiwe nemuviri uye zvinofanirwa kubviswa kuitira kuti zvisakonzere muchetura.

Kubva ipapo, iyo filtrate inonzi weti uye inoenda kuburikidza neakasara itsvo machubhu, uye kuburikidza neureters, kudzamara yasvika padundira, kwairi kuchengetwa. Dundira rinokwanisa kuchengeta kusvika pamazana mana kana mazana mashanu emamiriyoni emurine, isati yada kudururwa.

Sei weti inobviswa

Dundira rinoumbwa nekatsandanyama, mutete wakatsetseka une ma sensors madiki. Kubva pamamirioni zana nemakumi mashanu emurine weti yakaunganidzwa, tsandanyama dzedundira dzinodzikira zvishoma nezvishoma, kuti dzikwanise kuchengeta weti yakawanda. Kana izvi zvikaitika, ma sensors madiki anotumira masaini kuuropi ayo anoita kuti munhu anzwe kuda kuita weti.

Paunoenda kuchimbuzi, iyo weti sphincter inozorora uye chibvumirano chedundira tsandanyama, kusundira weti kuburikidza neurethra uye kunze kwemuviri.