Abin da dabbobi sun biyu gidajen zuciya? Tsari da kuma wurare dabam dabam

Jini motsi na kyallen takarda a cikin jiki yana bukatar wani irin famfo, da muhimmancin abin da aka sanya wa zuciya tsoka. A cikin sauki talikan, kamar tsutsotsi da kuma chordates, wannan sashin jiki ne ba ya nan, da kuma tsarin da jijiyoyi - rufaffiyar zobe. Kifi da biyu gidajen zuciya cewa Firaministan da jini ta cikin jini to duka sassa na jiki, yana ba su damar zuwa oxygen, gina jiki da kuma sakewa da su daga musayar kayayyakin, ya idar da su zuwa kiwo wurare.

Kamar yadda wurare dabam dabam ɓullo da

Sistem sakulasan ne sistem - ne kafuwar rayuwa ga mutane da yawa rayayyun kwayoyin halitta. Don su iya cika ta da ayyuka, da jini dole ne ci gaba da kewaya a ko'ina cikin jiki. Akayi na ci gaba da jini tsarin ana ganin haka a fili a lokacin da la'akari da zuciya da jijiyoyin jini tsarin kifi, halittar dabba mai kafafuwa, da abubuwa masu rarrafe da tsuntsaye.

1. Kifi ne banda kisan gillar da dabbobi tare da wata rufaffiyar jijiyoyi. Bã su da wani biyu gidajen zuciya da kuma guda wurare dabam dabam.
2. Halittar dabba mai kafafuwa da dabbobi masu rarrafe ne biyu wurare dabam dabam, da zuciya ne zuwa kashi uku bẽnãye. A ware ne crocodiles.
3. A cikin tsuntsaye, mutane da yawa dabbobi jiki Pump jini, aka wakilta hudu kyamarori, kuma jijiyoyi - biyu da'irori.

Cardiac tsoka kwangila da kuma propels jini ta cikin jijiyoyi, wanda ya kasu kashi karami tasoshin da kuma ya dace da duk wurare na jiki. Bayan, bada oxygen da kuma amfani abubuwa riga jini, kira a matsayin veins, da kuma dawo da baya wadãtar.

Yadda cikin zuciya aiki a kifi

Animals da biyu gidajen zuciya, fiye kira a matsayin banda kisan gillar. Su ne wakilan kifi da amphibian larvae. Kamar yadda bincike ya masana kimiyyar suka yi karatu da ci gaban da jijiyoyi, a fili yake cewa na farko da cikakken-talking jiki da aka samu a cikin kifi. Wadannan banda kisan gillar sun biyu gidajen zukãtansu, sallama zuwa ga atrium da ventricle bawul tsarin. Sistem sakulasan tsarin Forms daya yanki da'irar, ke bi venous jini.

Jini daga famfo motsa ta hanyar capillaries daga cikin gills inda oxygenated da kuma cika da receptacles. Next ne ta rarraba a capillaries dake a cikin jikin kyallen takarda, kuma su jikewa da oxygen. Sa'an nan da ta ke da jijiyoyinmu ba tare da oxygen da kuma ta sake koma cikin zuciya jakar a kan su.

tsarin

M kifi biyu gidajen zuciya, wanda aka conventionally zuwa kashi hudu segments:

• na farko kashi - an rabu, kira venous sinus, wanda shi ne ke da alhakin samun jini oxygen wanda ya ba da jiki;
• na biyu kashi dauke da atrium da bawuloli.
• uku kashi kira ventricle.
• na huɗu kashi ne aortic mazugi da dama bawuloli, wanda farashinsa jini a cikin peritoneal lakã.

Da zarar jini ya bar zuciya, shi motsa a kan gills, wanda aka tare da cikakken oxygen da kuma gudana a cikin kashin baya lakã, daga abin da aka rarraba wa dukan jikin kyallen takarda.

Higher-domin kifi duk segments ba located a kan wannan layin, amma a cikin siffar da harafin S, inda na karshe biyu segments su ne a sama na farko guda biyu. Irin wannan tsarin muhimmi a guringuntsi, kuma Crossopterygii kifi. Bony wakilan bambanta suma infundibulum, wanda mafi yawa ana bayyana a matsayin wani ɓangare na lakã, kuma ba na zuciya tsoka.

Description of Fish zuciya

Idan aka kwatanta da terrestrial vertebrate zuciya kifi kananan da kuma mai rauni. Its nauyi dabam daga 0.3 zuwa 2.5% na jiki nauyi. Saboda rauni rage matsa lamba a cikin tasoshin da aka ma ya raunana. Saboda irin wannan halaye na kifi ne iya tsira da mutuncin winters tare da icing. A wannan lokaci, kifi zuciya tsaya a nan duka, da kuma lokacin da defrosting rage sabunta, da kuma jini ya fara kewaya ta cikin jiki, kawo kifi daga rashin himma.

Wannan aiki na jijiyoyi saboda gaskiyar cewa kifi ne a kwance salon da kuma rayuwa a cikin ruwa, don haka babu bukatar tura up da ya kwarara daga jini da kuma yaki da nauyi.

Features na hematopoiesis a kifi

A cikin jiki, da kifi ne iya samar da maikacin jini da dama gabobin:

• gills.
• da hanji mucosa.
• epithelium da zuciya tasoshin.
• koda da kuma baƙin ciki.
• na jini.
• lymphoid gabobin, tsokoki da kuma kroveobrazuyuschimi kafa a karkashin murfin na zagayayyen kwanya.

Kifi jini ƙunshi ja jini Kwayoyin tare da wani tsakiya a cibiyar. Yau aka sani tsarin wakilta 14 jini kungiyoyin.

Wanda kuma biyu gidajen zuciya

Tare da miƙa mulki ga dabba terrestrial rayuwa siffofin da tare da samuwar su huhu, tsoka da kuma sauya zuciya tasoshin. Rikitarwa kungiyar dabbobi da kuma zuciya na biyu-jam'iyya aka canza kama zuwa wani sau uku da kuma yan hudu. Samar da wata biyu wurare dabam dabam, da kuma zuciya tsoka Pump da shi ya zama ba kawai venous amma jijiya jini.

A matsayin shaida da cewa dabbobi sun fara rayuwa daga cikin ruwa, da masana kimiyya kai da matakai na haifuwa na halittar dabba mai kafafuwa, da larvae daga waxanda suke da biyu gidajen zuciya, da kuma da jijiyoyi ne guda a matsayin kifi.

A manya, shi tasowa a uku-gidajen zuciya, wanda aka wakilta biyu atria da ventricles. Halittar dabba mai kafafuwa ne na farko dabbobi a cikinsa akwai wata biyu dabam dabam.

Oxygenated jini daga cikin huhu da kuma fata accumulates a hagu atrium da aka rabu da wani bangare daga hadawa da venous, wanda ya shiga dama atrium.

Da yake amsa tambayoyi game da abin da dabbobi sun biyu gidajen zuciya, za mu iya amince ce cewa a cikin manya da irin wannan jiki ne kiyaye kawai kifi da halittar dabba mai kafafuwa - a cikin larval mataki.