Ubume kwentliziyo

Yinto akukho mfihlelo intliziyo - i-organ iphambili emzimbeni womntu. Nangona oko abantu, umsebenzi intliziyo ekuhleni njengoko imeko yayo yangaphakathi kwaye ifomu lwangaphandle. Heart - ngokuqhubekayo yokusebenza injini eliphilileyo, leyo iimpompo iimpahla lokwaba wegazi. flow Single-emalungana igazi kuqinisekiswa kwemithambo yenhliziyo, leyo zivulwe phantsi koxinzelelo kwicala elinye. Izivumelwano Intliziyo kwezihlunu ngokuchanekileyo ngokucacileyo, eziva omninzi kakhulu enkulu. Bonke ubomi bakhe intliziyo yabantu isebenza rhoqo, nto leyo eneneni exhasa kobu bomi.

iiklasi umzimba njalo okanye umthambo kwenza intliziyo basebenze nzima, kwaye ngenxa yoko le izihlunu zentliziyo ivaliwe. Noko ke, njengokuba amandla uyandiswa ventricles. Ukuba imisipha intliziyo uyadinwa emsebenzini kwaye yabafumana lonke igazi lingena lweHo- ukuze aphuhlise ukukhula intliziyo congestive kunye nokungaphumeleli intliziyo. Ukuze siqonde ngcono le nkqubo, kuyimfuneko ukuba lokuhlolisisa into efana "isakhiwo wentliziyo."

Isakhiwo sangaphandle kwentliziyo

Ngokuqhelekileyo, xa elithi "intliziyo," umntu uzibona intliziyo encinane nebomvu abahlatywe utolo cupid. Noko ke, ukuba iimbono ezinjalo, ngaba ngokwenene kunjalo? Ngokuqinisekileyo akunjalo.

iimilo Intliziyo - cone, atshabalalisa ngendlela anteroposterior. Ubume intliziyo ithetha umahluko phakathi isiseko kunye ngaphezulu. Base - inxalenye eyandisiweyo ukuba mayibhekiswe ekunene, phezulu kwaye umva kancinci, eliphezulu - asezantsi isabelo tapered, ngokulandelelana, mayibhekiswe ekhohlo, phantsi kancinane phambili.

Phezu kwalo mzimba singakwazi ukubona lunamaqoqo ezininzi ezahlukeneyo kunye vee ukuba zibe imithambo yegazi. I inkulu kubo ngamagama abo. Oku, umzekelo, sulcus coronal, elisuke transversely ukuya ezimanyeneyo intliziyo yangaphandle ventricles kwemida isalathisi kunye nomthambo. Ukongeza, komhlaba onentliziyo echwayitileyo uba vee angasemva kwaye phambili interventricular - iimpawu zangaphandle imida ventricular. Apha lala kwakhona impahla intliziyo. Ubhalela bonke, kukho neziqu ezimbini phezu kwentliziyo - ezindlebeni imithambo.

Isakhiwo yangaphakathi kwentliziyo

Ngaphakathi intliziyo kunzima ngakumbi. Into yokuqala kufuneka sinikele ingqalelo ukufunda isakhiwo intliziyo, kukuba yokuba kukho izivingco ezine, ukuqinisekisa ukuhamba kwegazi kwicala phambili kwaye uthintele ukubuya egcine. Tricuspid kunye valve mitral atrioventricular lokwahlula ventricles ukusuka imithambo, pulmonary kunye neevalvu aortic semilunar - ventricles kwemithambo ezinkulu. Bonke bephela ziqhotyoshelwe amathambo ezinezikhondo kwentliziyo. ifreyim Heart ibandakanya izihlunu obukhulu kakhulu nokuqina, nto leyo inkxaso izihlunu kunye lwezivalo.

Ngokubanzi, echaza isakhiwo wentliziyo, kubalulekile ukuqaphela ukuba kanye intliziyo siquka amagumbi ezine: intendelezo ekhohlo, intendelezo ekunene, ventricle ekhohlo kunye ventricle ekunene. Bonke bephela ezahlulwe zokwahlula. Intendelezo ngasekhohlo uquka iphuma yemiphunga kwi ekunene - vuphukuphuku. Ukususela ventricles ekhohlo nasekunene ibekwe pulmonary nokwenyuka aorta, ngokulandelelana. Intendelezo ekunene kwaye ventricle ekhohlo ukuvala i enkulu kwegazi, intendelezo abashiyekileyo kunye ventricle ekunene - isangqa encinane.

Umphezulu engaphakathi amagumbi intliziyo neevalvu ilandelelanisiwe ngomaleko ekuthiwa ziiseli endothelial - endocardium. Xa inyama subendocardial equlathe fibroblasts, collagen neerhali ilastiki, imithambo-luvo, imithambo, iimpawu conductive le nkqubo. Ingeniso le inyama engabalulekanga - umsipha umaleko zamahlathi owakhiwa ngayo iiseli izihlunu intliziyo. Qaphela ukuba ngaphandle myocardium lwenzeka amanqatha ezikroziswayo kwizicwili, nolwenzelwa luvo ngokuya umaleko kwezihlunu wentliziyo, intliziyo kunye nempahla ezinkulu.

isakhiwo intliziyo - umzuzu umdla kwaye kubaluleke kakhulu komzimba womuntu. wahlanganisa kuphela de kube sekupheleni zonke bokuqonda le ngxaki, uyakwazi ukuqonda ukuba yintoni ngaphakathi emzimbeni wethu nendlela ukuxhasa ubomi babantu.