Nakunaku i roto i te kōhao-waha

Nakunaku - tenei tukanga kaua uaua, heke nei te ki te wāwāhi o rāpoi nui o pūmua, te ngako, me ngā waiwaro runga nga waetahi, e e ngāwari riro e ngā pūtau o te rauropi. I roto i ngā wāhanga rerekē o te wahi kūnatu wahia iho nga pūhui rerekē, e e ka riro e te membrane mucous o te whēkau iti me puta noa i te tinana. tīmata nakunaku i roto i te mangai.

I mua i whakaaro pehea te nakunaku i roto i te mangai, me te i te iti rawa maheni poto me tona hanganga.

Ko te hanganga o te kōhao-waha

Ka taea te wehea te anatomy kōhao-waha ki wehenga e rua:

• kōhao Buccal (te wāhi i waenganui i nga ngutu, me te niho);
• Mau te kōhao-waha (niho whāiti ki, wheua, me te HWM rangi mangai);

Ia huānga o te kōhao-waha he ona ake mahi, me te kawenga hoki te tukatuka kai motuhake.

He kawenga mō te maimoatanga pūkaha o kai totoka niho. Ki te awhina o canines me incisors tangata ngau kai, ka iti molars ona pehanga. molars Taumahi heke ki ngā hua komukumuku.

Reo - Ko te okana nui uaua e piri ki te raro o te kōhao-waha. e kore e whai wāhi anake Reo i roto i te tukatuka o te kai, engari i roto i te tukanga kupu. Moving tenei okana uaua hanumi paura kai ki huware, me te hanga i te bolus. I tua atu, Kei reira i roto i te kiko gustatory arero, waiariki, me receptors mamae aunoa.

repe salivary - hūare, repe submandibular me sublingual kei roto i te mangai mā te tau mahani. Ratou mahi matua - te hanga me te excretion o huware, i te mea faufaa no te nakunaku. mahi huware e whai ake:

• Kūnatu (huware kei whākōkī ki te āwhina o nei nga waro wāhinga);
• Paruru- (kei huware lysozyme, e kua ano āhuatanga bactericidal puai, i roto i te huware he immunoglobulins me āhuatanga coagulation huware tiaki te kōhao-waha i whakamaroke ..);
• Puha (ki huware tukua matū pērā i Urea, Mariao, waipiro, etahi raau taero);

Nakunaku i roto i te kōhao-waha: wāhanga aunoa

Ka taea e te kōhao-waha tomo te kai tino kanorau, me te i runga i tona ōritetanga kei te rānei whakawhiti tonu reira ki te pū kai i roto i horomia mahi (inu, kai wai) toro machining, ana i ngä atu tukanga nakunaku ranei.

Ka rite ki kua whakahuatia, te whakamahi i te huri paraoa niho kai. hiahiatia kaupapa arero ki te whakaoho i te kai te kokokiko, i te huware. I raro i te mana o te huware tamaru kai me hipoki ki te hūpē. Mucin, i roto nei i roto i te huware, e wahi i roto i te hanganga o te bolus kai, e muri haere ki te pū kai.

Nakunaku i roto i te kōhao-waha: te wāhanga enzymatic

Ko te hanganga o te huware e ngā ano me etahi whākōkī e whai wāhi i roto i te whāwehe o waerau. Ko te wāhinga waha o te waro i nei kua haere i runga i roto i te whēkau iti.

Kei huware te matatini paru i huaina ptyalin. I raro i te mana o to ratou pirau puta disaccharides ki polysaccharides (te nuinga he maltose). Muri maltose tākiekina e tetahi whākōkī piri ki te kūhuka hukatahi.

Ko te roa ko te kai i roto i te mangai, ka haria ki ngā pānga enzymatic, te māmā puta reira nakunaku i roto i te tahi atu wahi katoa o te wahi otaota. Ko te aha tūtohu tonu tākuta rite te roa rite koe e taea te whakahoki ake.

I tenei nakunaku i roto i te mangai mutu. Bolus haere i runga i me te whiwhi ki te pakiaka o te arero tīmata horomia tukanga kahuki i roto i nei haere kai ki te pū kai, me te muri ki te kopu.

Hei whakarāpopoto, i roto i te kōhao-waha puta tukanga pērā i huri kai, te tātaritanga o tona palatability, huware mākū, te ranu, me nga warowaihā pirau tuatahi.