Bala izici zasendulo izinhlanzi yesimanje cartilaginous. izici zabo

Kulesi sihloko kubalulekile uhlu izimpawu zasendulo izinhlanzi yesimanje cartilaginous. Lezi zihlanganisa stingrays futhi oshaka. Kuyinto ngazo futhi Kuzoxoxwa.

Sharks imisebe: umbono jikelele

Kodwa njengoba sekushiwo ngaphambili, lesi sigaba zezinhlanzi, iqembu cranial, abameleli esivelele okuyizinto le misebe bese oshaka. Eziningana kweshumi zinhlobo alesi sigaba izinsalela amaqembu lasendulo. Njengoba ngaphambili Kulindeleke ngenxa yokuntuleka skeleton akuwenzi iqembu izilwane nezakudala. Kodwa eziningi izimpawu ezinjalo isixhumanisi ukhona.

Uhlu izimpawu lasendulo

Okokuqala, banayo isici ezifana ukungabikho esinyeni bhukuda. Okwesibili, abanayo gill ihlanganisa ngokwabo gills babe isakhiwo bakudala. Zonke izimbotshana gill yena, kuvula out kunesikhala ezimele. Zonke lezi zici okukhulunywe ngabo lapha bangabantu eziyizici izinhlanzi lasendulo. Kule ndaba, kumele babe in motion njalo. Ihlelo lokukhambisa iingazi ukusebenza kahle kakhulu, inhliziyo igazi Isigaxa ukuma ezikhulisa nekusebenta kwegazi. Kodwa isici kashaka umzimba onamandla kwemisipha, esiza ukumpompa igazi wonke umzimba, njengoba inhliziyo oshaka kungukuthi bazivumelanisa imithwalo eliphezulu.

Kuyadingeka ukuba siqhubeke uthumele izici eziningi zasendulo engeziwe izinhlanzi yesimanje cartilaginous. Okwesithathu, yilona hlaka yokwakheka komzimba kunciphisa ukungqubuzana emanzini, bese kukhula ukuthi lingakanani ijubane lokuya. Ngaphezu kwalokho, kwekhabhoni imfihlo kuvimbela ukunamathela amagciwane emzimbeni izinhlanzi nganxanye ubavikele ngokumelene ezithile zama-bacterium.

Okwesine, cartilaginous ukuvulwa izinhlanzi umlomo kuhlelwe transversely, okungukuthi sici for izinhlanzi lasendulo, phambi okuyinto kumila empumulweni (ngisesiteji), kwakhiwa uqwanga, isakhiwo esivamile, isibonelo, oshaka. Okwesihlanu, umzimba embozwe izikali placoid.

Okwesithupha, ningaphenduleli ngokugcwele uhlu izimpawu zasendulo izinhlanzi yesimanje cartilaginous ngokugcwele, uma kungekhona acabangele engavamile ukwanda kwabo. Ngenxa yalesi basuke kabanzi bazivumelanisa nemibandela khona kuka, bathi, inhlanzi bony, okuyinto zikhiphela kungekho umdlalo elivikelwe kudingeka bazibonele. Ingxenye enkulu caviar uhlala unfertilized. Iningi oshaka imisebe umzimba we-embryo lihlotshaniswa unina ngemuva ezithile "Indawo Wezingane", okuyinto efana ezincelisayo esinomhlapho. Noma walala egqoke amaqanda obukhulu igobolondo ezinkulu, akugcobhoze esihlabathini.

I Sakhiwo sangekhatsi yizinhlanzi ekilasini

Ake sixoxe isakhiwo sangaphakathi izinhlanzi, okungase kwenziwe isibaluli ekilasini uqwanga, lwabanukubeza nabameleli eliqhakazile lesi sigaba, efana ushaka.

Imisipha Shark uhlelo siqukethe myomer, ithuthukiswe. Myomere - imisipha izingxenye. Imisipha kuthiwa lilungelo leliphelele ngegazi, njengoba ukunyakaza ushaka - lokho ekuphileni. Ukuze Shark igazi emuva inhliziyo, kuphela ingcindezi eyenziwe inhliziyo, ngeke kwanele. Ukungabi bikho ngomgudu womchamo abese izinso isici isakhiwo sangaphakathi lezi abameleli (ikakhulukazi oshaka polar). Ubuthi bahlanza away igazi excreted ngesikhumba nomzingeli nje ngaphandle. Gill izimbotshana esisogwini ebusweni umzimba kanye nokuvula kuya ngaphandle ku emphinjeni. Njengoba kuchazwe ngenhla: ushaka kungekho esinyeni sibhukuda, lokhu ikakhulukazi nabeqiniso ebhalwe ngenhla ngokusekelwe eBhayibhelini izici lasendulo oshaka yesimanje imisebe. Ngaphezu umsebenzi wayo ophambili nosemqoka, isibindi uba ingxenye esinyeni bhukuda. Ubukhulu isibindi Obalulekile. Futhi, lo msebenzi ngokwengxenye yabusa amanyikwe kanye gallbladder.

isiphetho

Ngakho, siye echazwe futhi efakwe ohlwini izimpawu zezinhlanzi yesimanje cartilaginous lasendulo zigqanyisiwe izici isakhiwo kanye ezincwadini ekuphileni isimo esifana izinhlanzi lasendulo.