Lōʻihi o ka naʻau liʻiliʻi

Ka liʻiliʻi o ka digestive'ōnaehana i loko o ka hapanui vertebrates. Ka mea, e ia la mahope o ka'ōpū. Ma ka liʻiliʻi ua paʻa digesting kino i ka ai, i ke omo o ka māhuaola e like me ka wehe 'ana (ke piʻoloke) undigested waiwai.

Ma kekahi mau holoholona, i ka digestive'āpana mea pono mai o keia oihana. Ma keia hihia, no ka lōʻihi o ka naʻau liʻiliʻi hilinaʻi nui ma luna o ka laha 'o nā holoholona, o ka oi aku kā lākouʻaiʻai ana a me ka makahiki.

Ka loa primitive o ka paʻa 'ole o ka digestive oihana ia lŘlŘ ma flatworms a me coelenterates (koloniala cnidarians). Ka hope i ka hookahi gastrovascular lua ma i ka wehe ana o 'ona ma waena o ke kanaka a i ka mana, a me ka mea'ē aʻe lēpela lālā. Ma flatworms he mea kekahi e komo ai no ka loaa ana i kaʻai a me ka wehe 'ia o ka wao nahele.

Invertebrates (nā mea kolo, molluscs) noho liʻiliʻi, iloko olaila o ekolu mahele (anterior, posterior a me ka waena liʻiliʻi). Ka mea mua loa ka loaʻa o ka waha, goiter, pharynx, esophagus, Aia ma ka hope o ka anus a me ka rectum, ma ka waena, - ma ka mea, liʻiliʻi, Malpighian moku,'ōpū. Kekahi punakea, i evert liʻiliʻi. Digestion lawe waho pela.

Ke larvae o ka lamprey-peskoroek a me Amphioxus i lawa nā moʻopuna a me ka uuku liʻiliʻi. Authority hoomaka koke ma hope o ka oropharyngeal lua. makua lampreys lōʻihi o ka naʻau liʻiliʻi mea uuku (ole aku ma mua o ke kino ia). Authority hoomaka koke ma hope o ka esophagus mai ka nohona kiwikā i loko o ka palapala o kaʻoni iho. Manawa a hiki i kēiaʻoni iho-hoʻokino lonikū pa mahuahua omo a me ka digestion wahi. ʻoni iho kiwikā o ka makana, a sturgeons a me ka mano.

He nui vertebrate liʻiliʻi lōʻihi e leie aku, e mahele ia i na pauku - he ala, nui a me ka uuku liʻiliʻi. Ma keia kino e hōʻike mea huna o ka pancreas a me ka akepaʻa. I ka hoʻomaka o ka naʻau liʻiliʻi pokou iʻa e pyloric appendages (makapo keʻano o ka hanaʻana) ke aupuni '. Ko lakou mau helu i e okoa. Amphibians i ka duodenum, a me ka cloaca wehe rectum.

Land herbivorous mea kolo i pono-ulu cecum. Ua Ua Aia ma ka palena o ka Māhele nui a me ka meaʻuʻuku. Ka lōʻihi o ka naʻau liʻiliʻi (lahilahi) na manu kekahi mau manawa ke kino lōʻihi. Mai ka hope mahele, a wehe i loko o ka cloaca, e hoʻokaʻawale i ka makapo outgrowths elua. Rectum a me ka AeXIeAaOIePEAaI e 'ike'.

Herbivorous holoholona i ka lōʻihi lawa liʻiliʻi. Makapo a me ka manoanoa na pauku i na ia manawa ka mea, ua ulu loa pono. AeXIeAaOIePEAaI lōʻihi rodent ke hiki 53% o ka huina o ka loa o ka naʻau liʻiliʻi. Moana ia mea nui pōkole. No ka laʻana, he hipa naʻau liʻiliʻi, i mea hou ma mua o ke kino lōʻihi o 29-35 manawa ka puaʻa - 14, lio - 12, a me Wolf - 6. Ka momona hoʻokaʻawaleʻia i loko o noho ana ma symbiotic microorganisms, a i ka loa pono ulu herbivorous.

Liʻiliʻi i loko o kānaka o ka nui loa hui, o ka digestive nenoaiu. Ua hoomaka mai ka opu a me ka welau a me ka anus (anus). Food nuipa Pńk'pika ma peristalsis (nalu-me contractions). Ma ke kaʻina hana o ka digestion ka pae'āina, ia mea i loko o ke kino o ka meaola, a hoolilo i ka flora. Keia hapa GIT digestion ua lawe mai,ʻaʻole wale nō, akā, i omo o ka mea pōhaku oihana mua mai i ka ai, me ka hoʻololi kemikala o kekahi hormones,'ōnaehana paleʻea keʻano o ka hanaʻana.

Ma kona wa e ola ana, lōʻihi o ka naʻau liʻiliʻi i loko o kānaka (makua) mea e pili ana i eha mau mika. I hanau, oia ua ma kahi o ekolu mika, i oi keiki ulu ma ka awelikaʻeono manawa. Ka lōʻihi o ke kanaka naʻau liʻiliʻi ma hope o ka make, piʻi pū a me ka mea e pili ana iʻehiku i ewalu mau mika. Keia mea aie a hiki i ka hoʻomaha no nā nāʻiʻo ma hope o ka make.