Menene zuciyar kifin? Kayan kifi na zuciya

Hakika, kifaye, da sauran masu ruwa a cikin ruwa suna da zuciya wanda ke da irin wadannan halaye ga mutum, yana cika aikin farko na samar da jiki da jini. Ba kamar tsarin tsarin jini na mutum ba, kifi yana da ɗaya da'irar kuma an rufe shi. Talakawa bezhryaschevyh kifi jini ya kwarara auku a mike Lines, kuma da hakan guringuntsi - da siffar da Turanci harafi S. Wannan bambancin ne saboda wani hadadden tsarin da gabobin da jijiyoyi da daban-daban abun da ke ciki na jini. A farkon labarin, zamu yi la'akari da zuciya mai kifi, sa'annan bayan haka mun juya zuwa ga wadanda ke zaune a duniyar ruwa.

Muhimmin kwaya

Zuciya - shi ne babban da kuma Babban jiki na wani daga cikin jijiyoyi. A kifi, kazalika a cikin mutane da sauran dabbobi suna da wata zuciya. Yana iya ze m, saboda kifin banda kisan gillar da dabbobi, da bambanci ga mu. Wannan kwaya ne kwayar muscular, wanda yake ci gaba da yin shuru, don haka yana kashe jini ga jiki duka.

Wani nau'in kifi da kuma yadda yaduwar jini ya faru, zaku iya koya ta hanyar karanta bayanai a cikin wannan labarin.

Girman jiki

Girman zuciya ya dogara da nauyin jiki, saboda haka yafi kifi, ya fi girma da "motar". Zuciyarmu idan aka kwatanta da girman yatsun hannu, kifi ba shi da wannan yiwuwar. Amma kamar yadda aka sani daga darussan ilmin halitta, a cikin ƙananan kifaye zuciya shine kawai kaɗan cikin santimita a girman. Amma a cikin manyan wakilai na karkashin ruwa duniya kwayar zata iya kai har zuwa ashirin zuwa talatin. Irin wannan kifaye ya hada da kullun, kullun, irin kifi, sturgeon da sauransu.

Ina zuciya?

Idan wani ya damu da yawan zukatan cikin kifi, za mu amsa nan da nan - daya. Abin ban mamaki ne cewa wannan tambayar zai iya tashi, amma kamar yadda aikin yake nuna, zai iya. Sau da yawa, a lokacin da tsaftacewa masu kula da kifi ba su da tsammanin za su iya samun zuciya. Kamar mutum, zuciyar kifin yana cikin sashin jiki. Idan, don ya fi dacewa, to daidai ne a karkashin gills. A bangarorin biyu zuciya ta kare ta hanyar haƙarƙari, kamar namu. A cikin adadi, wanda kuke gani a kasa, babban kifi na kifi an sanya lambar daya.

Tsarin

Bisa ga yanayin da ake da kifi na kifaye da kuma kasancewar halayen su, an shirya zuciya da bambanci fiye da dabbobi. A hankali, zuciyar kifin yana kama da mu a siffar. Ƙananan jakar ja, tare da karamin ruwan hoda mai launin ruwan kasa daga ƙasa, shine wannan kwaya.

Zuciyar mazaunan ruwa mai sanyi suna da ɗakuna biyu kawai. Wannan shine ventricle da atrium. Suna a kusa da kusa, kuma sun fi dacewa, daya sama da sauran. A ventricle yana ƙarƙashin atrium kuma yana da haske inuwa. Kifi yana da zuciya, yana kunshe da nama na tsoka, wannan ya faru ne saboda gaskiyar cewa yana yin tasiri na famfo kuma ana ci gaba da ragewa.

Tsaida tsarin

Zuciyar kifi tana haɗuwa da kayan gwal tare da taimakon arteries, wanda ke kasancewa a kowane gefen babban ɗigon ciki na ciki. An kuma kira shi aorta na ciki, sai dai saboda wannan, daga jiki duka zuwa atrium ne na bakin ciki, wanda jini yake gudana.

Yaduwar kifaye ya cika da carbon dioxide, wanda dole ne a sarrafa shi kamar haka. Tsayawa cikin jikin daji, jini ya shiga zuciyar kifaye, inda aka rusa shi ta hanyar jigilar jini cikin gills tare da taimakon atrium. Gills, bi da bi, an sanye su da wani salo na capillaries. Wadannan hatillaries sun ratsa cikin dukkanin gills kuma suna taimakawa da sauri daukar nauyin jini. Bayan haka, yana cikin gills da aka hada carbon dioxide kuma ya canza zuwa oxygen. Abin da ya sa yana da mahimmanci cewa ruwa inda kifaye ke rayuwa shine cikakken oxygen.

Ruwan hawan jini ya ci gaba da tafiya ta jikin kifaye kuma an aika shi zuwa babban aorta, wanda yake a saman tudu. Da yawa capillaries reshe daga wannan artery. A cikin su, jinin jini ya fara, ko kuma, musayar, domin, kamar yadda muka tuna, jini ya dawo daga gills da aka cika da oxygen.

A sakamakon haka, maye gurbin jini a jikin kifi. Jinin jini daga jigilar jini, wanda yawanci yakan dubi cikakken jan, canje-canje ga jini daga veins, wanda ya fi duhu.

Tsarin jini na wurare

Zuciya da bẽnãye kifi ne atrium da ventricle, wanda ke sanye take da musamman bawuloli. Yana da nauyin waɗannan shafuka cewa jini yana gudana a cikin shugabanci ɗaya, ba tare da juyawa ba. Wannan yana da mahimmanci ga kwayoyin halitta mai rai.

Sarkuna suna aika da jini zuwa atrium, daga can kuma yana gudana zuwa na biyu na zuciya na kifaye, sa'an nan kuma zuwa gabobin musamman - gills. Sakamakon karshe yana faruwa tare da taimakon babban aorta na ciki. Sabili da haka, zaku iya ganin cewa kullun kifaye yayi yawa.

Zuciya na kifi cartilaginous

Wannan musamman aji na kifi, wanda aka halin da gaban da kwanyar, kashin baya da kuma lebur gills. Mafi shahararren wakilin wannan aji ana iya kira sharks da haskoki.

Kamar uwansu bezhryaschevyh zuciya cartilaginous kifi yana da biyu kyamarori da kuma daya wurare dabam dabam. Hanyar musayar carbon dioxide don oxygen ya faru a daidai wannan hanya kamar yadda aka bayyana a sama, tare da wasu siffofin kawai. Wadannan sun hada da kasancewar wani furewa, wanda ke taimakawa ruwa ya shiga gills. Kuma duk saboda nauyin kifayen nan suna cikin yankin na ciki.

Wani fasali mai mahimmanci shi ne kasancewar wani kwaya kamar tsutsa. Shi, a gefensa, ita ce tasha ta jini. Wannan wajibi ne don tabbatar da cewa a lokacin aiki na musamman, ciyarwa da sauri a cikin jikin da aka so.

Jinin kifin cartilaginous yafi yawan oxygen, saboda yawancin jinin jini. Kuma duk saboda yawan ƙwarewar kwarewa, inda aka samo su.