Amsar ga mãsu haƙuri ta request, "Ka bayyana yadda da kuma inda primary fitsari ne kafa"

Man yawanci sha game da 2.5 lita na ruwa kowace rana. Don wannan ya kamata a kara da girma na 400 ml, wanda haifar daga lalace na fats, carbohydrates da kuma sunadarai. Babban jikinsu wanda kawo ruwa tukar tumbi daga jiki, da koda. A karamin sashi na ta bayyana sauki, fata da kuma tumbi. Mutane da yawa sun ji sharuddan kamar firamare da sakandare fitsari. Amma 'yan san abin da shi ne. Sau da yawa marasa lafiya zo likita da request. "Ka bayyana yadda da kuma inda primary fitsari ne kafa," - suka tambaye. A labarin da aka kishin wannan batu a cikin mafi daki-daki.

janar bayanai

A koda nephrons lura biyu lokaci ruwa samuwar. Ta sa'an nan hawa zuwa cikin excretory tsarin da kodan. Bari mu yi kokarin bayyana samuwar samuwa ruwa a cikin kodan. Saboda haka mu amsa da na kowa tambaya marasa lafiya tambaye a cikin wadannan nau'i: "Ka bayyana yadda da kuma inda primary fitsari ne kafa." Ta yaya ne da kasoshin lokatan? Primary fitsari kafa a corpuscles nephrons. Na biyu lokaci faruwa a tubules na nephron. Primary fitsari kafa daga glomeruli capsules capillary ganuwar da kuma na ciki Layer wanda suna da dukiya da tacewa. Capillary jini a cikin glomeruli daukan wuri a karkashin more matsa lamba fiye da sauran gabobin. An halitta da bambanci a diamita qazanta da kuma dauke da tafi da jini, wanda a farko sau biyu. Hawan jini taimaka ta tacewa ta cikin capillary ganuwar da glomerulus cikin kwantena. Saboda haka, na farko fitsari kafa ta bambanci a matsa lamba. A cikin kwanaki koda kanta ne sun ratsa ta cikin jini wanda shi ne a lamba tare da ciki jirgin ruwa katangu. Su yankin na glomeruli kai 1.5-2 mita. Amsawa ga request na marasa lafiya, "Ka bayyana yadda da kuma inda primary fitsari ne kafa," ya kamata kai da kuma wasu lambobi. Saboda haka, a rana ta samar da kimanin 180 lita na ruwa, to, wanda aka hawa daga cikin jiki. Kamar wancan ne wanda lita na shi ne tace da 10 lita na gudãna jini.

tsarin

Amsawa ga request, "Ka bayyana yadda da kuma inda primary fitsari ne kafa," dole ne a ce, kuma abun da ke ciki, a matsayin yanki na samuwar ruwa yana da tasiri kai tsaye a kan tsarinta. A cikin 1st lokaci na samuwar ƙunshi kusan dukan aka gyara na jini. Ban ne high kwayoyin nauyi sunadaran da corpuscles. Har ila yau, da fitsari dauke a cikin primary na rayuwa kayayyakin kamar urea, uric acid da sauransu. Next, shi fitowa a glomeruli daga tubules na nephrons, inda reabsorption aka yi a cikin jini amino acid, bitamin, glucose, ruwa da kuma salts. Wannan tsari shine ake kira reabsorption. A cikin hali na jini babban adadin mutum abubuwa, wasu rabo ba a sucked baya.

Properties

A babba halaye na farko fitsari hada da:

1. A low osmotic matsa lamba, wanda ya auku a dangane da membrane ma'auni.
2. Samuwar wata da manyan girma a kowace rana. Yana iya adadin zuwa dubun lita. Ganin cewa duk jini ya wuce ta kodan kusan ɗari uku sau, a lokacin da rana jiki ne iya tace har zuwa dubu lita na jini. Saboda haka, an yi shi game da 180 lita na fitsari a lokaci na farko.

Daga cikin fitsari kafa a lokaci na farko, da jini ne sucked cikin amfani da abubuwa na da kwayoyin.

Glomerular tacewa kudi (GFR)

GFR ne kayyade ta hanyar na tsarin jijiya da kuma humoral sunadaran. Glomerular tacewa rate ne ya rinjayi da wadannan aka gyara:

- glomerular arteriolar sautin, aiki a kan yawan da matakin na wucewa da jini tacewa matsa lamba;

- sautin mesangial Kwayoyin wadda ne connective nama dake tsakanin nephron glomerular capillaries da tacewa surface.

- makamashi visceral epithelial Kwayoyin da su aiki.

Wasu humoral effects, wanda sun hada da prostaglandidy, epinephrine, norepinephrine, atriopeptidy, adenosine, da sauransu, suna iya kara ko rage glomerular tacewa kudi. A mafi muhimmiyar rawa a ta m Playing na cortical jini ya kwarara autoregulation.

secondary fitsari samuwar kuma abun da ke ciki

A ko'ina cikin yini samar 1.5 lita na ruwa. Domin da samuwar na bukatar 150-180 lita farko. Ta hanyar tunzura daga hanyar da zai sauka a cikin mafitsara. Daga wannan bayanin shi ne excreted zuwa waje. A tubules ake tunawa game da 99% na ruwa dauke a cikin primary fitsari, kuma shi ya ƙunshi gina jiki. By sakandare ruwa abun da ke ciki ya bambanta muhimmanci daga kafa a 1st lokaci. Yana ba ya dauke da sugar, mafi salts da kuma amino acid. Duk da haka, akwai wani ƙara matakin na sulfate taro na urea, uric acid, phosphates da sauran gyara.

koda aiki

A taron na kasawa a cikin jikin gishiri, shi ne ba excreted a cikin fitsari. Wannan yana nufin cewa kodan yi da aiki na daidaita matakin dole abubuwa a cikin jikin mutum. Wancan ne, taimaka kashe ba dole ba jinkiri da m aka gyara. A tubules na nephron, fãce ga reabsorption na ruwa da kuma kasancewa a cikin shi abubuwa daga ƙarƙashinsu na iya faruwa a fitsari aka gyara, wanda ba su iya wuce koda tace a kan hanya daga capillaries cikin glomerular kwantena. Irin wannan abubuwa suna kwayoyi (mafi yawa maganin rigakafi), Paints da sauransu. Fitsari wanda aka kafa a cikin kodan, ureters shiga daga koda kofuna wucewa kafafuwa. Saboda da rhythmic contractions na tsokoki na kai tashoshi, da ruwa gudana a cikin mafitsara. Duk da haka, akwai fitsari an jinkirta don wani lokaci kafin shi ne cika.