KumiswaIsayensi

Iyini inhliziyo izinhlanzi? inhlanzi emakamelweni inhliziyo

Yiqiniso, inhlanzi kanye nezinye izakhamuzi zasemanzini nginenhliziyo, okuyinto has izici ezicishe zifane obuntu kokwenza umsebenzi ewumgogodla supply igazi emzimbeni. Englaweni eyodwa nje futhi ivalwe ngokungafani womuntu uhlelo kwegazi izinhlanzi. Ordinary bezhryaschevyh izinhlanzi ukugeleza kwegazi kwenzeka imigca lecondzile, futhi uqwanga ephakeme - ukuma incwadi IsiZulu S. Le umehluko kungenxa isakhiwo eyinkimbinkimbi izinhlaka isimiso sokujikeleza kwegazi futhi ezahlukene yokwakheka igazi. Ekuqaleni kwalesi sihloko, sicabanga inhliziyo izinhlanzi abavamile, bese uqhubekela uqwanga abakhileyo emangalisayo zezwe zamanzi.

umzimba ebalulekile

Inhliziyo - iyona esemqoka futhi umzimba omkhulu iyiphi sokuhamba kwegazi. Ngo inhlanzi, kanye labantu, elezinye izilwane abe inhliziyo. It Kungase kubonakale kungavamile, ngoba izinhlanzi nezilwane nongenanembeza, ngokungafani kithi. Lokhu umzimba esakeni kwemisipha, okuyinto njalo nokuncipha, kanjalo uzotshala igazi wonke umzimba.

Iyini inhliziyo izinhlanzi kanye ukuhamba kwegazi kwenzeka, ungafunda ngokufunda ukwaziswa okukulesi sihloko.

usayizi umzimba

Ubukhulu wenhliziyo incike esisindo Imininingwane, ngakho emikhulu izinhlanzi, aba maningi "motor" zalo. inhliziyo yethu uma kuqhathaniswa ubukhulu isibhakela, izinhlanzi bengayi. Kodwa njengoba sazi kusukela izifundo biology at inhliziyo izinhlanzi ezincane usayizi ngamasentimitha ambalwa. Futhi lapha abameleli ezinkulu emzimbeni ezweni kwamanzi ongafinyelela ngisho amabili noma amathathu ngamasentimitha. Lezi zinhlanzi zihlanganisa eyikati, Pike, uhlobo lwenhlazi yasemfuleni, Sturgeon, nabanye.

Likuphi inhliziyo?

Uma othile uphathelene umbuzo kangakanani izinhliziyo izinhlanzi, ngokushesha uphendule - eyodwa. Kuyamangalisa ukuthi lolu daba ungahlukaniswa ngokuvamile ube, kodwa njengoba umkhuba ubonisa, it can. Isikhathi esining impela lapho wokuhlanza wekhaya izinhlanzi ngisho nokuwabona bakwazi ukuthola kalula inhliziyo. Njengoba umuntu, inhliziyo izinhlanzi usesifundeni anterior zomzimba. Uma ukuba ngaphezulu ngqo, nje ngaphansi zokuphefumula. Kuzo zombili izinhlangothi inhliziyo ivikelwe izimbambo, kanye nelethu. Lesi sibalo, lapho ungabona ngezansi, umzimba omkhulu izinhlanzi esinelebuli inombolo eyodwa.

isakhiwo

Banikezwe izici kwezimila zezinhlanzi nokuthi banezinto gills, inhliziyo kwenchubo ehlukile kunaleyo e ezihlala ezweni. Ngokubukeka, inhliziyo izinhlanzi efomini ezicishe zifane nezethu. isikhwama Little ebomvu encane okhanyayo pink isikhwama phansi futhi kukhona walo mzimba.

Inhliziyo nongenanembeza impilo yasemanzini has emakamelweni amabili kuphela. Okungukuthi ventricle futhi ATRIUM. Basuke etholakala iseduze, noma uma sikubeka ngokuqondile, enye phezu kwenye. Ventricle uku ATRIUM netimphawu umthunzi ukuxegiselwa. Fish nginenhliziyo yakhiwa kwemisipha izicubu, kungenxa yokuthi efeza indima futha futhi ngokuqhubekayo encishisiwe.

ukuzungeza isikimu

inhlanzi inhliziyo ixhunywe gills ngosizo imithambo, okuyinto zitholakala nhlangothi zombili umfula oyinhloko besisu. Ibizwa nangokuthi le-aorta besisu, ngaphezu, nawo wonke umzimba atrial phambili emithanjeni mncane ukuthi igazi luyaphi.

Igazi izinhlanzi ocebile isikhutha, okumele kusetshenzwe ngendlela elandelayo. Kudlulwa imithambo yegazi uthola inhliziyo izinhlanzi, lapho ngosizo we Atria akhishwa ngokusebenzisa imithambo ku zokuphefumula. Gills, esikhundleni salokho, unikezwe sebuningini capillary esihle. Lezi capillary konke gills futhi kuzokusiza ngokushesha uyiswa ukumpompa igazi. Ngemva kwalokho, kuba gills-carbon dioxide elixutshwe futhi washintsha kunomoya-mpilo. Yingakho kubalulekile ukugcina amanzi lapho izinhlanzi eziphila, waba ayegcwele umoya-mpilo.

Oxygen igazi uyaqhubeka nohambo ngomzimba izinhlanzi bese ithunyelwa aorta main, okuyinto phezu yokhalo. Kule Umthambo azikhandle off sebuningini capillary. Egazini labo kwegazi iqala, kunalokho, exchange, ngoba njengoba sazi, kusukela gills emuva igazi nomoya-mpilo.

Imiphumela iba yinhlanganisela yokukhandleka esikhundleni kwegazi emzimbeni, neyezinhlanzi. Igazi elivela imithambo, ngokuvamile ubukeka obomvu ocebile, izinguquko igazi umthambo, okuyinto mnyama kakhulu.

I isiqondiso ukuzungeza

Inhliziyo emakamelweni nenhlanzi ATRIUM futhi i-ventricle, okuyinto anemisila valve akhethekile. Ngenxa la ma-valve ukuhamba kwegazi kwenzeka isiqondiso eyodwa kuphela, ekuqedeni thusi reverse. Lokhu kubaluleke kakhulu ngoba eziphilayo.

Vienna wathumela ukuba igazi ATRIUM, futhi ukusuka lapho wawuqala ageleza eya ekamelweni lesibili kwenhliziyo izinhlanzi, bese kwezinye izitho zomzimba ezithile - zokuphefumula. I motion yokugcina kwenzeka ngokusebenzisa eyinhloko aorta besisu. Ngakho, siyabona ukuthi inhliziyo izinhlanzi kwenza eziningi nema engapheli.

Inhliziyo cartilaginous izinhlanzi

Lokhu ikakhulukazi ekilasini zezinhlanzi, okuyinto libhekene khona ugebhezi, emgogodleni kanye gills flat. Omele edume kakhulu lesi sigaba kungenziwa ngokuthi oshaka imisebe.

Thanda izihlobo zabo bezhryaschevyh inhliziyo izinhlanzi cartilaginous has amakhamera amabili eyodwa kwegazi. Inqubo ukushintshisana isikhutha nomoya-mpilo kwenzeka ngendlela efanayo njengoba kuchaziwe ngenhla, izici ezimbalwa kuphela. Lokhu kuhlanganisa nokuba khona spiracle, esiza ukuthola amanzi zokuphefumula. Futhi zonke ngoba gills zezinhlanzi zitholakala endaweni besisu.

Esinye isici esiphawuleka kuba phambi umzimba ezifana ubende. Yena, iyona stop yokugcina igazi. Lokhu kuyadingeka ukuqinisekisa ukuthi ngesikhathi umsebenzi senzeka zokugcina okuphakelayo okusheshayo umzimba kwesokudla.

Igazi izinhlanzi cartilaginous eside ayegcwele oksijini, ngenxa inani elikhulu kwamangqamuzana egazi abomvu. Futhi zonke ngenxa yomsebenzi okwandisiwe izinso, lapho ukuthuthukiswa yabo.

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