A tsarin narkewa kamar na dabbobi masu rarrafe: tsarin fasali da kuma aiki

A tsarin narkewa kamar na dabbobi masu rarrafe yana da halaye da cewa yin shi fiye da wuya idan aka kwatanta da wannan tsarin a cikin halittar dabba mai kafafuwa.

Janar halaye na dabbobi masu rarrafe

Dabbobi masu rarrafe dabbobi su samu sunan saboda yanayin da motsi na duniya ta surface. Su dai rasa ko da gajeren wata gabar jiki, wanda aka shirya a kwance jirgin sama. Saboda haka, su ne wani nau'i ne na "groveling" a ƙasa. Dukan su ne banda kisan gillar dabbobi da cewa ƙware da ruwa, da kuma nazarin sasannin habitats. Amma ci gaban xan tayin, wanda aka kewaye da wani m harsashi na kwai faruwa gaba ɗaya a kan ƙasar. masu rarrafe jiki da aka rufe tare da bushe jaraba ma'auni.

Babban fasali su ne bayyanar da ciki tsarin wannan akwati na musamman na huhu numfasawa, ciki hadi da excretory tsarin dabbobi masu rarrafe, wakilta kodan, mafitsara da kuma cloaca.

Tsarin narkewa kamar: babban sashen

A tsarin narkewa kamar na dabbobi masu rarrafe wakilta fili da kuma musamman gland. Ba kamar halittar dabba mai kafafuwa, tsakanin wadannan dabbobi suna da salivary gland da cewa samar da enzymes. Wadannan halitta abubuwa ne nazarin halittu catalysts. Sun manne da hadaddun kwayoyin halitta a cikin sauki. A wannan tsari su za a iya tunawa da ajiye a ajiye. Tsarin dabbobi masu rarrafe narkewa kamar tsarin da aka ma halin da gaban undifferentiated hakora da kuma cecum. Waɗannan su ne babban fasali na rikitaccen idan aka kwatanta da halittar dabba mai kafafuwa.

Narkewa dabbobi masu rarrafe ya ƙunshi bakin, pharynx, kunkuntar esophagus, ciki da hanji. Last bambancin da kuma kunshi kananan da manyan sassan, wucewa cikin cecum. Ƙare narkewa kamar tube cloaca. Wannan shi ne wani kofa inda tsaya fita ba kawai nepererevarennye ragaggen abinci, amma kuma da kayayyakin da excretory da kuma haihuwa tsarin na dabbobi masu rarrafe.

narkewa kamar gland shine yake

Narkewa kamar tsarin ne quite rikitarwa dabbobi masu rarrafe. Narkewa na biyu shuka da dabbobi abinci da suka ci, shi ba zai yiwu ba ba tare da kasancewar na baƙin ƙarfe. Har ila yau salivary abubuwa da enzymes wanda manne, moistened da kuma facilitates ingestion abinci, da abubuwa masu rarrafe da hanta da kuma pancreas. Kowane Gabar aikin ta aiki. A hanta secretes bile, wanda disinfects da kuma karya saukar da abinci barbashi. A pancreas asirce enzymes cewa cikakken narkewa sunadarai, fats da kuma carbohydrates.

Enzymes masu rarrafe narkewa kamar gland ne chemically aiki abubuwa. Saboda haka, duk sanannun cewa macizai ba tauna su abinci, da kuma kama su ganima dukan. A tsari na narkewa fara a cikin ciki kawai. Wani lokaci yana da tsawon lokaci na zuwa makonni da dama.

siffofi da wahala

Kamar yadda aka ambata riga, da excretory tsarin na dabbobi masu rarrafe ne halin da wasu fasaloli na da rikitarwa. Duk da cewa duk da hakora a cikin oropharyngeal rami ne guda kuma kawai bauta kama da rike ganima, akwai spetsialirovannye. Alal misali, macizai masu zafin dafi. Yawancin mutane sun gaskata cewa su kamu da inna da ganima da taimakon harshe. Amma ba haka. Wadannan baka rami ne m hakori, a cikinsa akwai wani tashar tare da wani mai guba abu. Kuma daga cikin muƙamuƙanka na yara kamar crocodiles, da kuma tara ba zai yiwu ba, saboda su hakora ne musamman iko da kuma kaifi. Alal misali, ruwan wukake da dabba don haka sau da yawa "aikin" cewa bambanta zuwa dama dubun sau a kowace shekara. Af, sabanin halittar dabba mai kafafuwa, da yawa na da harshen ne sashen kama daga abinci, jiki krokodidov kusan Fused da tushe daga cikin baki, don haka ga alama cewa ba shi da kõme.

narkewa kamar tsarin ayyuka masu rarrafe

Narkewa kamar m tsarin tsara don narkewa da sha na gina jiki. A da tsakiyan nonon da aka kasaftawa wani adadin na makamashi amfani da rayayyun kwayoyin halitta ga duk m tafiyar matakai. Lokacin da wannan tsakiyan nonon daukan wuri ta wajen enzymes qware gland, da kuma motsi na abinci barbashi daga cikin baka rami a gudanar da wani cloaca fili tsoka bango.

Saboda haka, da narkewa kamar tsarin yana da dabbobi masu rarrafe kamar hankula tsarin fasali na chordates, da kuma wasu rarrabe. A fili yake cewa idan aka kwatanta da halittar dabba mai kafafuwa, shi ne fiye da wuya a sami. Wannan yana bayyana a gaban narkewa kamar enzymes cewa an sake ta musamman gland, cecal da hanji bambantawa.