Mashandiro Anoita Mwoyo Wako

Zvemukati

• Makamuri emoyo
• Mavharuvhu emwoyo
• Ropa rinoyerera kuburikidza nemoyo
• Korona yemoyo

Mwoyo wako

Moyo wemunhu ndeimwe yenhengo dzinoshanda zvakanyanya mumuviri.

Paavhareji, inorova kutenderera ka75 paminiti. Sekurova kwemoyo, inopa kumanikidza kuti ropa rigone kuyerera kuendesa okisijeni uye zvakakosha zvinovaka muviri kumiviri yako kuburikidza netiweki yakakura yetsinga, uye inodzosera kuyerera kweropa kuburikidza nemambure etsinga.

Muchokwadi, moyo unoramba uchipomba avhareji yemarita zviuru zviviri zveropa kuburikidza nemuviri zuva rega rega.

Mwoyo wako uri pasi pe sternum yako uye ribcage, uye pakati pemapapu ako maviri.

Makamuri emoyo

Makamuri mana emoyo anoshanda sepombi ine mativi maviri, iine kamuri yepamusoro uye inoenderera yepazasi kudivi rega remoyo.

Makamuri mana emoyo ndeaya:

• Atrium chaiyo. Iyi kamuri inogamuchira ine huturu mweya-wakazadza ropa iyo yakatotenderera ichitenderedza nemuviri, kusanganisa mapapu, uye nekuipomba mukati meiyo ventricle chaiyo.
• Right ventricle. Iyo chaiyo ventricle inopomba ropa kubva kurudyi atrium kune pulmonary arteri. Iyo pulmonary arteri inotumira iyo deoxygenated ropa kumapapu, uko inotora okisijeni mukutsinhana ne carbon dioxide.
• Atrium yekuruboshwe. Iyi kamuri inogamuchira oxygenated ropa kubva mumapapu emapapu emapapu uye kuripurudzira kuruboshwe ventricle.
• Kuruboshwe ventricle. Nesimba rakakora kupfuura mamwe makamuri ese, ventricle yekuruboshwe ndiyo yakaoma kupomba chikamu chemoyo, sezvo ichipomba ropa rinoyerera richienda kumoyo nekuzorora kwemuviri kunze kwemapapu.

Moyo maviri atria ari maviri ari pamusoro pemoyo. Ivo vane basa rekugamuchira ropa kubva mutsinga dzako.

Mavhiri maviri emoyo ari muzasi memwoyo.Ivo vane basa rekupomba ropa mukati medu tsinga.

Yako atria uye ma ventricles kondirakiti yekuita kuti moyo wako urove uye kupomha ropa kuburikidza nekamuri yega yega. Makamuri ako emwoyo anozadza neropa usati warova wega, uye chidimbu chinosundira ropa kunze mune imwe kamuri inotevera. Kupunzika kunokonzereswa nemagetsi emagetsi anotangira kubva kusinus node, inonziwo iyo sinoatrial node (SA node), iri munyama yeatrium yako yekurudyi.

Iwo mapurses anobva afamba nepamoyo wako kuenda kune iyo atrioventricular node, inonziwo iyo AV node, iri padyo nepakati pemoyo pakati peatria nema ventricles. Aya mafungire emagetsi anochengeta ropa rako richiyerera nemutinhimira wakakodzera.

Mavharuvhu emwoyo

Moyo une mavhavha mana, imwe neimwe kumucheto kwerwizi kwekamuri yega yega, kuitira kuti, pasi pemamiriro ezvinhu akajairika, ropa harigone kuyerera richidzokera kumashure, uye makamuri anogona kuzadza neropa uye kupomha ropa kumberi zvakanaka. Aya mavhavha anogona dzimwe nguva kugadziriswa kana kutsiviwa kana akakuvara.

Mavharuvhu emwoyo ndeaya:

• Tricuspid (kurudyi AV) vharuvhu. Iyi vharafu inovhura kubvumira ropa kuyerera kubva kurudyi atrium kuenda kurudyi ventricle.
• Pulmonary vharafu. Iyi vharafu inovhura kubvumidza ropa kuyerera kubva muvharoni yekuruboshwe ichipinda mutsinga yemapapu kuenda kumapapu, kuitira kuti moyo pamwe nemuviri wese ugamuchire yakawanda okisijeni.
• Mitral (kuruboshwe AV) vharuvhu. Vharuvhu iyi inovhura kurega ropa richiyerera kubva kuruboshwe atrium kuenda kuruboshwe ventricle.
• Aortic vharafu. Vharuvhu iyi inovhura kurega ropa risiya muvhenekeri yekuruboshwe kuitira kuti ropa riyerere richienda kumoyo nemutumbi wese, kuchengetedza mapapu.

Ropa rinoyerera kuburikidza nemoyo

Kana ichishanda mushe, ropa rine deoxygenated rinodzoka kubva kunhengo, kunze kwemapapu, rinopinda mumoyo kuburikidza nemitsinga miviri mikuru inozivikanwa seya vena cavae, uye moyo unodzosera ropa rayo rine huturu richidzokera kwairi kuburikidza nesonic coronary.

Kubva pazvivakwa zvine huturu, ropa rinopinda muatrium yekurudyi uye rinopfuura nepavhariki yetricuspid kuenda muvheyeti chaiyo. Ropa rinozoyerera nepavharumu yemapapu kupinda mutrunk arteri trunk, uye rinotevera kufamba nenzira yekurudyi uye yekuruboshwe tsinga dzemapapu kuenda kumapapu, uko iro ropa rinogamuchira oxygen panguva yekutsinhana kwemhepo.

Parinodzoka kubva kumapapu, iro oxygenated ropa rinofamba nekurudyi uye kuruboshwe tsinga dzemapurmoni kuenda kuruboshwe atrium yemoyo. Ropa rinozoyerera nepakati pevharuvhu yemitral ichipinda muvheriyumu yekuruboshwe, imba yemagetsi yemagetsi.

Ropa rinobuda kunze kuruboshwe ventricle kuburikidza neaortic vharuvhu, uye kupinda muaorta, ichikwira kumusoro kubva pamoyo. Kubva ipapo, ropa rinofamba nemumazamu etsinga kuti riende kune ese maseru mumuviri asiri mapapu.

Korona yemoyo

Maumbirwo eropa reropa remoyo anonzi coronary circulatory system. Izwi rekuti "coronary" rinobva mushoko rechiLatin rinoreva "rekorona." Tsinga dzinopisa tsandanyama yemwoyo dzinokomberedza moyo sekorona.

Coronary chirwere chemoyo, icho chinonzi coronary artery chirwere, chinowanzo kukura apo calcium ine cholesterol uye mafuta mabara anounganidzwa mukati nekukuvadza tsinga dzinopa mhasuru yemoyo. Kana chikamu cheimwe yeaya mahwendefa chikatsemuka, chinogona kuvhara kamwe kamwe cheidziyo uye kukonzeresa tsandanyama yemoyo kutanga kufa (myocardial infarction) nekuti yakafa nenzara ye oxygen nemuviri. Izvi zvinogona zvakare kuitika kana ropa rakagumbuka rikaumbika mune imwe yetsinga dzemoyo, izvo zvinogona kuitika mushure mekuparara kwedombo.