Mumumuviri wedu unopfuura mazana emakiromita 90 000 emidzi yeropa inotakura inenge 4,5-5.5 malita eropa.
Iko neuralgic centre yenyika ino yakanaka ndiyo mwoyo - nhengo inokosha musimba inoenderera mberi ichiputira okisijeni ropa nokuda kwemaitiro ezvimwe masero. Iyi ndiyo inonyanya kukosha, nokuti chikafu chemasero ose chinoenderana nekushanda kwayo kushanda.
Pangosvika kupiwa kwemasero ane michina, ropa rinodzokera kumwoyo, richiipinda kuburikidza nepamusoro nepamusoro mitsetse isina miti. Zvadaro, mushure mekunge mazadzwa nemhepo inopenya, ropa rinoramba richifamba mumutumbi wose.
Chokwadi chinofadza pamusoro pekupararira kweropa
- Kufamba kweropa pamwoyo kunotora mashure mana.
- Kupararira kweropa kusvika pamagumo ekupedzisira kunotora anenge masekondi gumi nemana, uye kuuropi - anenge masere masere.
- Vanenge zviuru zvitatu zvekudzingiswa kunoitika zuva nezuva.
- Kureba kwemidziyo yedu yeropa kunopfuura 90,000 km. Izvi zvinoreva kuti vanogona kuvharwa pasi pose kupfuura kaviri.
- Izvo huwandu hwetsika ye capillary ndeyema 2500 capillari pamakiromita emakiromita emakumbo.
Mishonga - midziyo inobata hupenyu hwemagetsi
Kuwana masero ezviyo zvose zvinodiwa zvakakwana zvichienderana nehuwandu hwekupararira kweropa. Uye ndiyo mitsetse iyo inokonzera kuburisa kwezvikamu zvekudya. Muchiitiko apo kupiwa kwezvibereko kunotanga kushaya kushanda, masero anotambura, anomanikidzwa kuzvitsvakira nzira yekubuda mumamiriro asingatarisirwi. Pakutanga vanogona kuramba vachiita basa ravo, pasinei nekusava neropa kwekuyerera. Asi, hongu, iyi ndiyo muganhu. Kunyanya arterial transport mineral substances, enzyme, mavitamini, mashuga, mafuta uye oksijeni, ndiko kuti, izvo zvikamu zvinokosha zvakakosha kuita basa rinowanzokosha remasero ose mumuviri wedu.
Simba rekukwezva
Kazhinji yenguva yatinopedza kumira kana kugara uye kazhinji kasingaoneki. Saka, chipingamupinyi chikuru chinokunda mitsipa, kudzokera ropa kumwoyo, isimba rekukwezva.
Iyo mishonga inobatsira zvikuru kuita basa rayo, sezvo izvi zvinotungamirirwa nekunatswa kwepfungwa, zvakakosha kuti kufamba kweropa mumuviri. Mune mitsetse, pane zvinopesana, kuoma kunopera simba.
Nokudaro, kuti akunde simba rekukwezva, hurongwa hwehutu hunofanira kunge huine zvimwe zvinhu. Somuenzaniso, patinomhanyira kana kuenda, kushushikana kunoitwa nechepenic (chikamu chepamusoro chechiso chetsoka) kunobvumira ropa kuti rimire kumwoyo. Panguva ino, iyo inogadzirisa suture inotyisa inotamba, iyo inodanwa nokuti inzvimbo ine dense network ye veins. Basa guru ratakangotsanangura ndechokuti tipe pfungwa yekutanga yeropa kuitira kuti iyi yekupedzisira ibude pamwoyo.
Kune rumwe rutivi, kune dzimwe nzira dzinogona kugadziriswa nehutachiona hunogadzirirwa kuratidza kudzoka kwakarurama kweropa kumwoyo. Izvo zvinokonzera mushumbani yemakumbo musimba muhukuru paunowedzera, uchiedza kuomesa mumavheiri akadzika iyo yavanobata nayo, nokudaro kusundira ropa kumwoyo.
Pachikamu chemukati chemaketeni, kune mavhavha maduku (haaine arteri), iyo inotungamirira mitsetse kumoyo. Pakupedzisira, chinhu chakanyanya kukosha basa rekufuridzira, izvo zvinoita kuti zvive nekufambisa kweropa apo chidimbu chinokurudzirwa kusvika pamimba.
Mvura yakadzika uye yakashata yemasope
Izvo zvirwere zvinokonzerwa nehutano zvine huwandu hwakawanda hwemitsipa dze dimers dzakasiyana, dzakagoverwa mumuviri wose.
Kana iri yenheyo yepamusoro pamigumo yakadzika yemuviri wedu (makumbo), inofanira kugoverwa kuva maviri masaniti.
- Inzvimbo yakadzika inofanirwa kutakura ropa iro rave rashambidza musumbu. Masvini emvura yakadzika anounza pamwoyo 90% yeropa.
- Iyo yekutengesa yepamusoro inoshandisa 10% yeropa nematavi muzvikamu zviduku. Iyo iri mumutambo uyu, wakagadzirwa nemasvosve akaoma uye asingasviki, kuti zvirwere zvevaricose zvinowanzokudziridza zvikuru. Icho chikonzero ndechekuti sezvo iyo yepamusoro isiri yakagadzirirwa kutakura yakawanda yeropa, kubviswa kwevaviri vevaricose hakuiti dambudziko rehutachiona.
Iva zvakanaka!