Marongerwo uye kushanda kwomwoyo. moyo womunhu sei?

Mwoyo - Nde nhengo yomuviri wedu. Ndizvo akunoita, chii mamiriro, uye zvinoenderana utano hwomunhu. Uye mashandiro mwoyo - iri yakakura chaizvo nyaya, izvo, kanenge achiratidzika kuva chiratidzo chimwe nechimwe.

STRUCTURAL zvinhu

Saka, chinhu chokutanga zvinofanira kucherechedzwa kuti mutumbi riri kurutivi pechipfuva rworuboshwe. Kunyange paine munyika yedu, boka duku nemamwe chaizvo vanhu - mwoyo yavo kurutivi rworudyi. Kazhinji vanhu vakadaro vane pachangu chaizvo nemamiriro muviri, kureva girazi. Uye, naizvozvovo, mwoyo zvakare vakasiyana kwakajairika urongwa.

Kazhinji, muviri uyu rinoumbwa in zvina - kuruboshwe nezvakarurama atria uye ventricles ose. pamakamuri awa vakakamurwa partitions. Siyanei mhando mamiriro mwoyo. Figure, iro rinotaura muviri chaizvo kunoratidza kuti chinomiririra. Asi mhango - hachisi chinonyanya kukosha. Individual nzeve mavharuvhu anokonzera chokubuda ropa.

Location of mwoyo mavharuvhu

Chinhu chokutanga kutaura pamusoro chikamu ichi mwoyo, saka izvi ndizvo unopinda akasiya atrium, ari pulmonary mutsinga uye kupinda zvakanaka - negomba. Of kurudyi uye rworuboshwe ventricles kunouya vachikwira yeropa uye pulmonary hunde. Saka nyaya iyi zvinokosha kufunga zvizere. Kuruboshwe ventricle yakanga yakakamurwa pamwe atrium (riri kudivi rimwe) ari mitral vharuvhu, rinonziwo maviri-danho. A rworudyi atrium yakakamurwa pamwe tricuspid vharafu. Kunyange mumwoyo iyo anobvumira kuswedera zvakadzama nezvacho nemamiriro womuviri, ndivo kutsemuka uye pulmonary mavharuvhu. Ivo basa nedanho water drainage ropa kubva ventricles vemakoko.

kutenderera kwacho

Chii mashandiro mwoyo ndiwo unonyanya kukosha? Sezvinotarisirwa, kufamba kweropa. Pasina izvozvo, muviri Havaikwanisa kushanda zvakazara. Munhu wose anoziva kuti mwoyo unoshanda mbiri kuparadzirwa - zviduku. Chokutanga izvi kunotanga zvakanaka ventricle, uye kuguma kwayo iri mu atrium kuruboshwe. Ndiye anokonzera zvakakwana gasi mukutsinhana ari Formação de pakati mumapapu. Achitaura Wechipiri kucherechedza kuti hombe denderedzwa ventricle kuruboshwe kunotanga uye migumo, sezvo imi kuti fembera, zvakarurama atrium. Ndiye anokonzera ropa kwete chete mumapapu asiwo dzimwe nhengo. izvi zvose zvizere chinozoiswa chete nomwoyo utano.

Valve mashandiro ari kuita

Zvakawanda zvakataurwa pamusoro mavharuvhu uye chii mashandiro mwoyo. Basa ravo rinofanira kuva akajeka uye rakanyatsorongwa. Nokuti kupomba kushanda mwoyo kunoenderana chaiyo pamusoro vharuvhu, iyo pamwe chete kuumba mashandiro yose. Tricuspid anovhura - uye ropa zvinoenda rworudyi ventricle kubva atrium. Kamwe rakazara neropa, tsandanyama pasi mugumisiro kwokudzvinyirira vharuvhu anovhara. Zvino ropa rinogona kubuda chete kuburikidza pulmonary hunde, iyo anotungamirira pulmonary vharuvhu anovhura pasi BP, iro anowedzera munguva marwadzo rwerudyi ventricle. Ropa idzokere chete kana pabani mitral vharuvhu. Log in yeropa rinogumisa kuti kutsemuka vharuvhu, chine mapapiro matatu kuti kufanana chimiro nezvimwedzi. Kana kuruboshwe ventricle akadekara - zvinonzi rakavharwa, uye naizvozvo venous ropa anopinda zvakanaka atrium. Saka zviratidzo uye kufamba kweropa. Chokwadi, kwomuromo achiri refu kwazvo, asi chaizvoizvo zvinotora chete kwechinguvana. Saka kutsanya ndiko mwoyo yedu.

The chokwadi munokosha achiziva

Marongerwo mashandiro anoita muviri ichi havasi kukosha chete, vachiri dzinonakidza. Somuenzaniso, vanhu vanoziva kuti ropa riparadzirwe rinoitwa vanenge 100,000 nguva pazuva ari chinhambwe 100 000 makiromita! Zvinoshamisa, ndiko kureba zvakadaro zvose nhumbi muviri wedu. Uye kana isu kutaura pamusoro nguva vangani pagore akaderedza mwoyo yedu, zvino pane kungoita muchadenga nhamba - vanopfuura mamiriyoni 34! Uye pakupedzisira, ichangobva date - nokuti nguva ino mwoyo pumps marita mamiriyoni matatu ropa. Hazvina kusimba zvikuru. Saka, kana iwe vanonetseka kuti basa mhando iri kuteererwa mwoyo, tinogona kutaura kuti chokwadi - zvinokosha. Uye kuita kuti ichi yakakura basa. Zvinokosha kutaura chimwe chinhu: mumwe rutapudzo chete anotora mari iyi simba, iyo yaizova zvakakwana kusimudza nhumbi muna 400 magiramu kurema kuti kukwirira 1 mita. Uye izvi kufungisisa chokwadi chokuti mwoyo yozorora, vanopedza muzana 15 chete uwandu reserves ayo panguva yayo inoraswa. Asi kana muviri anoita basa rakaoma, anopedza 35% vayo simba. Kuti mwoyo yedu, marongerwo uye mashandiro anoita iri rinokosha chaizvo uye nemamwe.

Myocardium chacho specificity

Pano unogona kutaura kwenguva refu uye chaizvo mujenya. Somuenzaniso, myocardial masero contractile. Kukurukura mashandiro mwoyo, haagoni asi kukanganisa pfungwa uye nguva. Chokwadi kuti kwemakore akawanda dzinovangira pasina kumbomira. Nekuti zvakakosha kuti vari kuramba yaipiwa pamwe mhepo. Kushaya okisijeni uye zvimwe zvinovaka muviri kukanganisa mashandiro mwoyo womunhu. Kana havazoaiti, masero kutanga kufa, uye pakarepo. Pashure pezvose, vasinga reserves, izvo zvinogona kubatsira muzviitiko izvozvo. Life masero cardiac - a shingirira kutenderera. Uye tsandanyama yakazara ropa, anogona nenzara. Pashure myocardial ropa nezvizere mhango yayo, haadyi. Okisijeni uye zvokudya zvose achipfuura midziyo yaidzika kubva yeropa.

buditsa basa

Zviri mumwe mukuru. Uye ndiko alternation pamusoro diastole uye systole mwoyo ventricles - iri rave kutandara zvavo uye marwadzo. Kana vaita diastole, ivo ventricles vazadze neropa. Kana paine systole, ivo kupfuura ropa mukati pulmonary hunde uye yeropa, t. E. In huru arteries. Ungaita sei rangarira - pedyo ventricles ndiwo mwoyo mavharuvhu, zvinova chipingamupinyi harungashandurwi nhokwe ropa mwoyo kubva tsinga. Handiti ropa, risati wakazadza ventricles, ichipfuura huru mutsinga zvakananga kupinda atrium. Rutapudzo - zviri pashure ventricular systole. Tinogona kutaura kuti atrium - ndiwo rudzi upiyona pombi, kubatsira wokuzadza ventricles.

Functional zvinhu nemwoyo

Zvazvinoreva kunokosha kufanana basa rinoitwa mavharuvhu. Muscle faibha rinongova rimwe dzichipfekeka zvinoriumba. cheni iri rinoumbwa myocardial masero, izvo chokuita mumwe uye akanyudzwa rimwe sarcoplasmic membrane. Zvinofanira kucherechedzwa kuti fibers akakamurwa marudzi anoverengeka. Zvose zvinoenderana zvavo chadzo uye morphological zvechadenga wacho. The mhando wokutanga - a internet ventricular uye atrial myocardium. Idzowo huru kwetsandanyama uye ndivo anopa kupomba ishande. A yechipiri mhando - Yaunoti tsandanyama fibers anoitisa hurongwa. Ivo basa nechitarisiko kufara, uyewo kuti kuchinjwa yake mumasero myocardium. Naizvozvo mhanyisa mwoyo mwero - migumisiro kuvhiringidzika dzichipfekeka zvinoumba nechepakati dzemuviri.

Migumisiro Kuvhiringidza mwoyo

Basa sei chinozoiswa zvakanaka mwoyo yevanhu basa, zvinoenderana nokuti utano kwayo, kare kutaurwa. Zvinosuruvarisa nhasi, vakawanda vanotambura nezvirwere chokuita muviri kuti. Ndivo vanhu vakwegura vachishingaira vanorwara uye vakwegura. Izvi imhaka yokuti radudzwa - muviri iri kushanda asiri rurege hwose, uye hazvishamisi kuti pashure pemakore 50-60 dzamarudzi basa, anoneta. Vatatu shanu kwevanhu achifa nokuda mwoyo chirwere, zvinganaka yomwoyo.

By zvirwere mapoka matatu makuru zvirwere chokuita midziyo ropa, mavharuvhu uye deko jira. Somuenzaniso, atherosclerosis - chirwere chinobata mwoyo midziyo. Nenzira, vakawanda chirwere. Kana mwoyo kukundikana, zvakawanda zvinokanganisawo. zvirwere More chakakomba anofanira kunzi dzezvakaipa. Musimboti hosha iri kutyora upi Zvaiitwa mwoyo mavharuvhu. Uye kusarurama kwemafungiro inogona kana vawana kana vachiberekwa. Arrhythmias kunogona kuitika kana munhu mwoyo ushande iri vasingadzoreki. Kakawanda zvikaitika wakakodzera agogodza kusachinja-chinja, kakawanda, kana mwoyo mutinhimira. Vamwe vanhu vanotambura angina (anoxia). Uye pakupedzisira, zvinofanira kucherechedzwa pfungwa kukanganisa, somunhu myocardial infarction. A kusiyana coronary tsinga chirwere - kana paine chirwere wenyika myocardium nyika haizorambi dzinoyamwa ropa, kana hazvisi sezvo chaizvo senguva dzose.

cardiopalmus

Inobva kumusoro, zvinogona kunzwisiswa kuti kana kuchinja chero nokuitika muviri wedu chikuru - Saka ichi ndechimwe kutyora chero kwemoyo kushanda. Zvichida rakajairika uye kakawanda vakachengeta chirwere palpitations mwoyo. Izvi zvingava tachycardia, kunoitika nokuda coronary tsinga chirwere, myocarditis, myocardial dystrophy, kana nokuda kuremara. Asi dzimwe nguva chirwere ichi haina chokuita mwoyo - zvingava nokuda thyroid chirwere, kubereka kana bundu kwakaratidzwa pacharo. Vanhu vazhinji havambokwanisi kuteerera nekorasi kurwadziwa kana chinoshamisa nezvekufadza. Uye pasina, nekuti mwoyo yedu iri kusangana mutoro hombe. Kunyanya iteerere ichi Tinofanira kudaro kana private basa iri akarondedzera huta basa, mupfungwa uye mwoyo.

mamwe zvinhu

Kuwedzera Implementation wokufambisa, muviri uyu unokosha, pane dzimwe nzira. Chii huru mashandiro anoita mwoyo anofanira dzinounzwa zvakawanda? Zvichida vanonzi automatism - kukwanisa kwayo kubudisa pulses dzakadaro kuti vanotsamwisa excitation. The guru siyana automatism sinoatrial raiva pedyo nebundu. Achiri havagoni kukanganwa pamusoro conductivity - mashandiro ari myocardium, kana pane kukwanisa kwayo wokushandura nomunhu zvakananga kupinda contractility mwoyo. Chaizvoizvo, excitability - neurongwa pakupa nokukurumidza kwemwoyo kufamba kweropa simba. Uye, chokwadi, refractory, ndiye kushaya kukwanisa Activate masero ari myocardium kufara kana kana vane zvimwe zviratidzo vakatanga kusvika. It yakakamurwa Mhedziso (kana mwoyo vasingakendengi chose kune chero excitation), uyewo hama (muviri ikasakendenga yakasimba chaizvo mashoko). Saka mwoyo yevanhu mabasa hazviperi.

Chinhu bedzi ndinoda kutaura - nokuti ndizvo zvaunofanira kumutarisira. Pashure pezvose, muviri ichi zvinokosha zvikuru, uye zvinoenderana ezvinhu ya upenyu hwevanhu. Nokudaro, inobva ataurwa, zvinokuchengetedzai kuzivisa kuti mwoyo marongerwo uye kushanda izvo vaionekwa zvakawanda nenzira, - a mashandiro raiumbwa vakawanda midziyo ropa, in uye mavharuvhu, interconnected mumwe chinangwa - kupa kutenderera wakakwana. Handiti, zvakakodzera kuti upenyu chipenyu chipi. Saka chii chaizvo ichi chikuru kushanda mwoyo.