Kugunda kwa mtima

Zamkati

• Chidule

Chidule

Mtima uli ndi zipinda zinayi ndi mitsempha inayi yayikulu yamagazi yomwe imabweretsa magazi pamtima, kapena kunyamula magazi.

Zipinda zinayi ndi atrium yolondola ndi ventricle yakumanja ndi atrium yakumanzere ndi ventricle yakumanzere. Mitsempha yamagazi imaphatikizapo vena cava wapamwamba komanso wotsika. Izi zimabweretsa magazi kuchokera mthupi kupita kumalo oyenera. Chotsatira ndi mtsempha wamagazi womwe umanyamula magazi kuchokera pamitsempha yamanja kupita kumapapo. Msempha ndi mtsempha wamagazi waukulu kwambiri mthupi. Amanyamula magazi olemera okosijeni kuchokera kumitsempha yamanzere kupita kumthupi lonse.

Pansi pa chovala cholimba cha ulusi wamtima, mutha kuwona kuti ikugunda.

Mkati mwa zipindazi muli ma valve amtundu umodzi. Izi zimapangitsa magazi kuyenda mbali imodzi.

Utoto wolowetsedwa mu vena cava wapamwamba, umadutsa muzipinda zonse zamtima panthawi imodzi yamtima.

Mwazi umaloŵa koyamba mu mtima wa atrium. Kupanikizika kwa minofu kumakakamiza magazi kudzera pa valavu ya tricuspid kulowa mu ventricle yoyenera.

Ventricle yolondola ikamagwirizana, magazi amakakamizidwa kupyola mu seminunar valavu yamapapu m'mitsempha yam'mapapo. Kenako imapita kumapapu.

M'mapapu, magazi amalandira mpweya kenako amatuluka m'mitsempha yama pulmonary. Imabwerera mumtima ndikulowera kumanzere kumanzere.

Kuchokera pamenepo, magazi amakakamizidwa kudzera mu mitral valavu kulowa mu ventricle yakumanzere. Ili ndiye pampu yamphamvu yomwe imatumiza magazi kuthupi lonse.

Vortricle yakumanzere ikachita mgwirizano, imakakamiza magazi kudzera pa valavu ya aortic semilunar ndikulowa mu aorta.

Aorta ndi nthambi zake zimanyamula magazi kumatumba onse amthupi.

• Mpweya
• Matenda a Atrial