Moyo wedu unoshanda sei? Yakatsanangurwa kuvana.

Moyo ndiyo imwe yenhengo dzakakosha kwazvo Chii chatinacho mukati memuviri wedu. Iyo iri mukati medu chipfuva chinova thorax uye iri pakati pemapapu maviri. Hukuru hwayo hwakaita kunge chibhakera chedu uye chinowanzo kurema magiramu mazana matatu, icho chemunhu mukuru chinogona kusvika kusvika pa300 g.

Moyo une basa rakakosha kwazvo uye rakafanira ichienderera nekupomba ropa kumakona ese emuviri wedu uye kuti iite saizvozvo tinofanirwa kufungidzira kuti ine kuramba kukuru uye nekugara kwenguva refu. Ndokusaka isu tichifanira kutarisira zvakanyanya mamiriro ako, uine zvine mwero kurovedza muviri uye kudya kwakanaka.

Mwoyo chii?

Icho chihomba chemukati kukura kwechibhakera uye chakaumbwa kunge peya Inowanikwa pakati pemapapu maviri, mukati membabvu. Nzvimbo yaro yakatenderedzwa zvishoma kuruboshwe nechikamu chakanongedzwa pasi.

Basa guru remwoyo kuita inoramba ichipomba ropa kukona yega yega yemuviri wedu. Mukutumira kweropa izvi zvichaita kuburikidza nesangano rekudzvinyirira uye ichave iine oxygen yakachena kugamuchirwa kubva mumapapu. Ropa iri rinozofamba nemumachubhu anonzi tsinga uye Ichaparadzira okisijeni iyi mumasero ese, munyama, uye nhengo.

Ropa rinopera sei ne oxygen inofanirwa kudzokera kumapapu kunopihwa oxygen. Ichasvika pamapapu ichibva yacheneswa kutanga, sezvo iine marara, uye ichazadza neoksijeni kuti ipfuure zvakare mumoyo uye yotangazve kutenderera kwayo.

Sekupinda iwe unofanirwa kuziva kuti moyo zvibvumirano pakati pemakumi mashanu nezana rimwe nguva paminiti patinenge tichizorora, tisingashandise. Izvo zvinosvika kanosvika zana mazana ezviuru pazuva. Y Inokwanisa kupomba anenge zviuru gumi zvemarita eropa pazuva mumuviri wese. Tine ma5 litita eropa mumuviri uye ndidzo dzichava idzo dzinogara dzichitenderera kubva pamoyo kuenda kumuviri wedu. Pane nguva zhinji kwazvo zvekuti ropa rinotenderera nemoyo yedu zvekuti iwo mashanu malita anodudzira mumarita zviuru gumi pazuva.

Mabasa ayo mune zvakadzama

Nemufananidzo uyu watinokuratidza, zvichave nyore kwazvo kuziva kuti moyo wedu unoshanda sei nhanho nhanho.

1. Chikamu chine ruvara rutsvuku iropa rinozotakurwa ne oxygen. Naizvozvo, ropa rinouya kubva mumapapu neoksijeni yaro pinda mumoyo kuburikidza nerudyi uye kuruboshwe tsinga dzemapapu.
2.  Ivo vachapinda kuruboshwe atrium uye voenda kuruboshwe ventricleKubva ipapo, inozofambiswa kuburikidza neaorta kuitira kuti ropa rigoverwe kumakona ese emuviri.
3. Ropa pakudzoka kwaro inodzoka isina oxygen kuburikidza neiyo yepamusoro vena cava uye yakaderera vena cava kupinda nenzira yekurudyi atrium, uchidarika uchienda kurudyi ventricle uye uchisiya uchigoverwa neyekuruboshwe pulmonary arteri uye kurudyi pulmonary artery
4. Ropa iri rinodzokera kumapapu kunopihwa oxygen uye tanga iwo iwo iwo kutenderera zvakare.

Kufarira kwemoyo

• Mwoyo ita ruzha paunenge uchirova, chimwe chinhu chakafanana ne "ducta-duc".
• Sekutaura kwatakaita moyo Inogona kurova pakati pemakumi mashanu ne50 kurova paminiti uye mukurova kumwe nokumwe kunosvitsa mamirita makumi masere eropa. Kana tichiekisesaiza, moyo unorova zvakanyanya uye ropa rinomhanya zvakanyanya mumuviri wese.
• Hana inorova pamwero mukuru kusvika Mamirioni makumi matatu pagore.
• Wepamoyo wekutanga kuisa paDecember 3, 1967 na chiremba wekumaodzanyemba weAfrica Christian Barnard.
• Iwo wakareba kwazvo kupona wakasimwa moyo waive Makore makumi maviri nemaviri, mwedzi gumi nemazuva makumi maviri nemana.
• Mapapu ekuruboshwe madiki kwazvo pane kurudyi. Izvi zvinodaro nekuti zvinosiya nzvimbo yemoyo.