Yadda Zuciyarka take aiki

Wadatacce

• Chamakin zuciyar
• Maganin zuciya
• Jini yana gudana ta cikin zuciya
• Kambin zuciya

Zuciyar ka

Zuciyar mutum tana daya daga cikin gabobin da ke aiki cikin jiki.

A matsakaita, yana buga kusan sau 75 a minti ɗaya. Yayinda zuciya ke bugawa, tana bada matsin lamba don jini ya iya gudana don isar da iskar oxygen da mahimman abubuwan gina jiki ga nama a duk jikin ku ta hanyar babban jijiyoyin jijiyoyin jini, kuma yana dawo da gudan jini ta hanyar sadarwar jijiyoyi.

A hakikanin gaskiya, zuciya a kullun tana harba jini kimanin galan dubu biyu na jini cikin jiki kowace rana.

Zuciyarka tana ƙarƙashin ƙwarjinka da haƙarƙarinka, kuma tsakanin huhunka biyu.

Chamakin zuciyar

’Sakunan zuciyar guda huɗu suna aiki azaman famfon mai fuska biyu, tare da na sama da na ci gaba da ƙasa a kowane gefen zuciya.

Chamakunan zuciyar guda huɗu sune:

• Dama atrium Wannan ɗakin yana karɓar jini mai ƙarancin iskar oxygen wanda ya rigaya ya zagaya cikin jiki, ba tare da huhu ba, kuma yana tura shi zuwa cikin ventricle ɗin dama.
• Dama mai kwakwalwa. Hannun dama ya buge jini daga atrium na dama zuwa jijiyar huhu. Maganin huhun huhu yana aika da jini mai rage jini zuwa huhu, inda yake karbar oxygen a madadin carbon dioxide.
• Hagu atrium Wannan ɗakin yana karɓar jini mai iska daga jijiyoyin huhu kuma yana tura shi zuwa hagu.
• Hagu na hagu Tare da daskararrun tsoka na dukkan ɗakunan, ventricle na hagu shine mafi ɓangaren ɓangaren bugun zuciya, yayin da yake harba jini mai gudana zuwa cikin zuciya da sauran jiki banda huhu.

Atria na zuciya biyu dukkansu suna saman zuciyar. Su ke da alhakin karbar jini daga jijiyoyin ku.

Zuciyar zuciya biyu suna cikin ƙasan zuciya.Su ke da alhakin tura jini zuwa jijiyoyin ku.

Atria da ventricles suna kwangila don sanya zuciyar ka ta bugu da zubar jini ta kowane ɗaki. Chamakin zuciyar ku cike yake da jini kafin kowane bugawa, kuma ƙanƙancewar ya tura jinin zuwa ɗakin na gaba. Ragewar ya samo asali ne daga bugun jini wanda ya fara daga kumburin sinus, wanda kuma ake kira kumburin sinoatrial (SA node), wanda yake a cikin jikin atrium na dama.

Maganin bugun jini sannan kuyi tafiya a cikin zuciyar ku zuwa ƙudurin atrioventricular, wanda ake kira AV node, wanda yake kusa da tsakiyar zuciya tsakanin atria da ventricles. Wadannan hanzarin lantarki suna sanya jinin ku gudana a cikin rudani mai dacewa.

Maganin zuciya

Zuciya tana da bawuloli guda huɗu, ɗaya kowannensu a ƙarshen ƙarshen kowane ɗakin, don haka, a ƙarƙashin yanayi na yau da kullun, jini ba zai iya guduwa da baya ba, kuma ɗakunan na iya cika da jini da kuma tura jini gaba da kyau. Wadannan bawul din wasu lokuta ana iya gyara su ko sauya su idan suka lalace.

Maganin zuciya shine:

• Tricuspid (dama AV) bawul. Wannan bawul din yana bude don bawa jini damar guduna daga atrium dama zuwa bangaren dama.
• Bawul na huhu Wannan bawul din yana budewa ne don bada damar jini ya gudana daga jijiyar hagu zuwa jijiyar huhu zuwa huhu, don haka zuciya da sauran jiki zasu iya samun karin oxygen.
• Mitral (hagu AV) bawul Wannan bawul din yana budewa don barin jini ya gudana daga atrium na hagu zuwa bangaren hagu.
• Bawul aortic Wannan bawul din yana budewa ne don barin jini ya bar bangaren hagu ta yadda jini zai iya gudana zuwa zuciya da sauran jikin, ya kiyaye huhu.

Jini yana gudana ta cikin zuciya

Lokacin aiki yadda yakamata, jini mai yaduwa wanda yake dawowa daga gabobi, banda huhu, ya shiga zuciya ta manyan jijiyoyi guda biyu da aka sani da vena cavae, kuma zuciya tana dawowa da jininta na jini zuwa kanta ta hanyar jijiyoyin zuciya.

Daga waɗannan ƙwayoyin halittar, jinin ya shiga atrium na dama kuma ya ratsa ta bawul din tricuspid ɗin zuwa cikin ventricle ɗin dama. Jinin yana gudana ta cikin bawul na huhu zuwa cikin akwatin jijiyar jijiya, kuma na gaba ya bi ta jijiyoyin huhu na dama da hagu zuwa huhu, inda jini ke karbar iskar oxygen yayin musayar iska.

A kan hanyarsa ta dawowa daga huhu, jinin da ke cikin iskar oxygen yana bi ta jijiyoyin dama da hagu zuwa cikin atrium na hagu na zuciya. Jinin yana gudana ta cikin mitral bawul din zuwa hagu na hagu, dakin karfin zuciya.

Jinin yana fita ta gefen hagu ta cikin bawul din aortic, kuma zuwa cikin aorta, yana fadada zuwa sama daga zuciya. Daga nan ne jini yake bi ta wasu jijiyoyin jijiyoyi don isa zuwa ga kowane sel na jiki banda huhu.

Kambin zuciya

Tsarin jinin zuciya shine ake kira tsarin magudanar jini. Kalmar "coronary" ta fito ne daga kalmar Latin ma'anar "na kambi." Jijiyoyin da suke hura tsokar zuciya suna kewaya zuciya kamar kambi.

Ciwon zuciya na jijiyoyin jini, wanda ake kira cututtukan jijiyoyin zuciya, yawanci yakan taso ne yayin da alli dauke da sinadarin cholesterol da allunan kitse suka tattara tare da cutar da jijiyoyin da ke ciyar da jijiyoyin zuciya. Idan wani ɓangare na ɗayan waɗannan alamun ya fashe, ba zato ba tsammani zai iya toshe ɗayan tasoshin kuma ya sa tsokar zuciya ta fara mutuwa (cututtukan zuciya) saboda tana fama da yunwar iskar oxygen da abinci. Hakanan wannan na iya faruwa idan dunƙulen jini ya bayyana a ɗayan jijiyoyin zuciya, wanda zai iya faruwa kai tsaye bayan ɓarkewar plaque.