The kweropa Hurongwa haina kuvharwa uye yakavharwa

Kweropa maitiro (non-yakavharwa uye akavhara) ndiro mashandiro nayo Implementation pangava co-ordinated kufamba kweropa (hemolymph) womuviri, iyo dzinovimbisa upenyu hwayo zvizere. inofamba Its chaizvo munyika ichibudira kubva pulsation mwoyo tsandanyama kana kuderedza thickening kwemasvingo yeropa uye arteries kana nhengo dzomuviri kufamba uye tsandanyama. Zviri kuburikidza riparadzirwe chokufambisa kuti zvinhu kunoitika uye kupisa Exchange pezvakaitwa kuti achifurira uye metabolic zvazvingava. Kuvharwa kana rakavhurika kweropa hurongwa: sei vakasiyana, uye iye zvinhu mamirire? Mhinduro dzemibvunzo iyi dzichakurukurwa muhurukuro munyaya.

The kweropa Hurongwa haisi kuvharwa zvinowanikwa zvinenge zvose invertebrates, uyewo dzakaderera chordates (Amphioxus mu). Blood kuyerera mune zvinenge izvi anokonzerwa rutapudzo womwoyo, kana "mwoyo", uyewo, kusvika pamwero wakati, kuti rutapudzo pakati tsandanyama dzomuviri. A maitiro chinhu - yakawanda ropa panguva yakaderera kumhanya kwaro kufamba.

Closed kweropa hurongwa anogona kuva rimwe makopi (hove uye cyclostomes) uye vaviri - zviduku (nezvinokambaira, amphibians, shiri, mhuka). Ruchiyerera napakati zviduku denderedzwa ropa nguva nenguva anoshandura sezvamunoita wayo, uye iri venous, arterial chinhu. A mhuka ine utsinye, kunyange yakavhenganiswa venous uye arterial kana kutsemuka mwoyo, ropa kubuda unodiwa yakaderera. The kupanana zvinhu pakati ropa uye nyama dzomuviri kuitwa pachishandiswa mutete rirambe richibvira masvingo. KUTSVAGA manyowa zvigadzirwa kunoitika kunyanya itsvo, kana zvimwe miviri kuparadzana.

The kweropa Hurongwa haisi kuvharwa kukwana chaizvo, asi pakati varidzi namahwindo kweropa ino kupfuura yakanaka iri shiri uye mhuka. The vamiririri makirasi aya chine mbiri mana chambered mwoyo uye kufamba kweropa. Kazhinji, asi arterial ropa hakumbofi avhenganisa venous ropa. Characteristically zvakakwana yakakwirira kumanikidzwa. Chimwe chakanakira - pamwero zvikuru ropa riyerere kuburikidza midziyo (zvichienzaniswa iyo ropa kuparadzirwa munzvimbo Zvipembenene ndiyo inenge 22 maminitsi, imbwa - ichi mumasekonzi 16, uye netsuro - 7.5 seconds). Zviri nemhaka idzi zvichibvira kwoushamwari-bloodedness kuvakuru rudzi mhuka, iyo rinobvumira mberi tembiricha muviri, pasinei zvakatipoteredza ezvinhu. Yaingowanikwa shiri uye mhuka uye yakakwirira metabolic kunyatsoshanda.

Kufamba kweropa mumuviri womunhu inopiwa marwadzo mwoyo, vanoshandira akafanana pombi. Pakati pezvimwe zvinhu muve kufamba kweropa - kufema kufamba, achidzikisa ari skeletal tsandanyama, kumanikidza musiyano iri nhumbi. Mumwe hunhu cardiac basa - zvazvingava mwoyo. Pulse - kwenguva nenguva kuwedzera arteries, rinobatana pamwe sunga nomwoyo tsandanyama. maitikiro Its kunoenderana zvinhu zvakawanda, kusanganisira muviri uremu, tembiricha uye mamiriro womuviri, muviri uye mupfungwa, uye zvichingodaro. The kuipa kwemwoyo nokuti mukuru ari 60-80 anorova paminiti. A kusiyanisa zvazvingava ropa kuyerera mumidziyo kubva asingasviki 1 mm / chik ari capillaries pamusoro masendimita 50 / s huru arteries. Riparadzirwe yose ropa rose muviri vanenge 20-25 seconds. Ropa runoita pasi nevamwe mukurusa yeropa uye arteries makuru uye duku, kunyange kunaka, muchanza mutsinga. Harungashandurwi kufamba ropa uye kudzivisa mavharuvhu izvo vanza atrioventricular orifice, muromo pulmonary tsinga uye yeropa, uye mavharuvhu dziri pamasvingo huru mutsinga. Kana zvakakwana pamusoro contractile kushanda mwoyo ropa riyerere haina kuvhiringidzwa.

Sezvaunogona kuona, kweropa gadziriro haina kuvharwa uye kuvharwa vane anokosha chaizvo zvinhu zviri chokwadi kuziva ose erudite, uye kwete munhu.