The anatomical nemamiriro mwoyo womunhu

Heart - huru nhengo yacho kweropa hurongwa. The anatomical nemamiriro mwoyo womunhu akadaro kuti zvakazara nechokwadi Implementation munhu kushanda nechepakati muviri wegadziriro ropa nerubatsiro yose muviri.

Nhengo iyi iri muna mubhokisi mhango: ari mubhokisi riri Anterior mediastinum pamusoro diaphragm. 70% iri mukati mumoyo thoracal mhango kuruboshwe 30% - kuti kurudyi sternum. Funga mamiriro mwoyo womunhu, kubva masvingo aro. rusvingo Cardiac ane-rukoko matatu mamiriro: imwe rukoko yomukati - endocardium mudungwe pamwe masero endothelial; svikiro - tsandanyama kana myocardium, ina cardiomyocyte; yokunze - epicardium uye pericardium inoumbwa mutete Kamudzira pamusoro connective rinenge romukati pose iyo yakafukidzwa mesothelium. All mhango muviri mukati vakatumira endocardium, uyewo anoumba moyo mavharuvhu. Pericardium, dzimwe nguva inonzi mwoyo hembe, orifukidza kunze nokuumba bhegi Yaunoti mwoyo. Chinangwa charo chikuru - kuderedza kukweshera mwoyo kubasa uye kuidzivirira kubva Kufurirwa nevamwe. Pakati machira ane pericardium ane mutswe-kufanana nzvimbo akazadzwa shoma emura.

Moyo yakakamurwa kuva partition huviri mhango sezvikamu - kurudyi. hafu neimwe kuchibva atrium uye ventricle. Kodzero hafu nguva dzose venous ropa iri kuruboshwe - arterial. Nemamiriro kwomwoyo womunhu ndechokuti venous ropa haana mixes pamwe arterial. Chambers iri pakati kurudyi tricuspid vharuvhu, munzvimbo mbudo kubva kurudyi ventricle pamusoro pulmonary arteries - the pulmonary vharuvhu. Kuruboshwe hafu mwoyo pakati atrium uye ventricle riri bicuspid kana mitral vharafu, uye kutsemuka goho kubva mhango pakati ventricle kuruboshwe - tricuspid kutsemuka vharafu mapepa ane kirisendi. Pakukora kuruboshwe ventricular Rusvingo yakakura zvikuru kupfuura zvakanaka. Izvi imhaka kuruboshwe ventricle anogara kushanda kupfuura kuzviita, ichibudisa ropa mukati yeropa, mberi anoenda nemuviri, uye kodzero - chete zvemapapu midziyo.

Zvakarurama atrium ropa vari mutsinga maviri makuru, makatumidzwa okumusoro negomba. Ivo unganidza venous ropa kubva nhengo dzose. The akasiya atrium anopinda ropa zvina pulmonary mutsinga, izvo, mushure okisijeni wevasungwa mumapapu kunova arterial. Pulmonary tsinga, pulmonary hunde anonziwo, umo venous ropa anoenda mumapapu, anouya achibva kurudyi ventricle. Kudeuka tsinga yacho yeropa kugoverwa arterial ropa muviri wose, chinobuda ventricle kuruboshwe. Kubva pamusoro zvinganzi vakagumisa kuti nemamiriro kwevanhu mwoyo hakuna kusiyana nemamwe mammalian pamwoyo.

The mwoyo chaizvo anogamuchira ropa kubva maviri coronary arteries. The akasiya coronary tsinga zvinobva kuruboshwe kutsemuka sinus kana kuruboshwe sinus kuti Valsalva, yaiva 1 masendimita pamusoro kupinza ari semilunar mavharuvhu. It runoparadzanisa kupinda Anterior kuruboshwe achiburuka bazi uye hamvuropu achivapa ropa kuti chikamu anterolateral uye rworuboshwe ventricular posterior rusvingo, uyewo chikamu interventricular septum, muromo mwoyo uye kuruboshwe atrium. Kubva kurudyi kutsemuka sinus kana rworudyi sinus pamusoro Valsalva anotanga zvakanaka coronary tsinga. mudziyo uyu Anorwira ropa kusvikira myocardium rwerudyi atrium nezvakarurama ventricle, chikamu chiduku chete interventricular septum.

Mwoyo womunhu, sechivako dzatakurukura, anoita mabasa ose automatism, conduction, excitability uye contractility. Basa muviri ichi inotungamirwa cardiac nzvimbo iri pakati medulla oblongata uye zambuko. Ivo kukanganisa mwoyo zvazvingava, atrioventricular conduction velocity, simba mumwoyo sunga.

The physiology kwomwoyo womunhu kuti ayo anokosha kuti nguva dzose rakatumbuka marwadzo uye kutandara, kureva systole uye diastole, kuti tibu- kufamba kweropa, uye pamwe pacho dzirambe dziripo okisijeni uye kunovaka masero ose muviri.