Kodi Tili Ndi Nambala Yokha Yopuma Kapena Yamtima?
Mlingo wa chiphunzitso cha ukalamba umanena kuti anthu (ndi zamoyo zina) ali ndi mpweya wabwino, kupwetekedwa mtima , kapena zochitika zina, ndi kuti adzafa kamodzi atagwiritsa ntchito izo.
Koma musayese kukhala ndi moyo wautali mwa kuchepetseratu mphamvu yanu ya metabolism pakali pano: pamene lingaliro likhonza kuthandiza kufotokoza zina za ukalamba, sizikulimbana ndi zofufuza za sayansi zamakono.
Mbiri ya Mtengo wa Chiphunzitso Chokhala ndi Moyo
Mlingo wokhala ndi chiphunzitso cha ukalamba ukhoza kukhala chimodzi mwa ziphunzitso zakale zomwe zikuyesera kufotokoza chifukwa chake zamoyo (kuphatikizapo anthu) zimakalamba.
M'nthaŵi zakale, anthu ankakhulupirira kuti monga makina adzayamba kuwonongeka pambuyo pa nambala yambiri ya ntchito, thupi la munthu limawonongeka molingana ndi momwe likugwirira ntchito. Lingaliro la masiku ano likuzindikira kuti chiwerengero cha mtima wa mtima sichitchula kuti moyo udzatha. M'malo mwake, ochita kafukufuku akuyang'ana pa liwiro limene thupi limapanga oksijeni.
Pali umboni wina, poyerekeza mitundu, kuti zolengedwa zamtunduwu zomwe zimakhala ndi mpweya wothamanga kwambiri zimafa pang'ono. Mwachitsanzo, zinyama zing'onozing'ono zomwe zimapweteketsa mtima zimayambitsa mpweya mofulumira ndipo zimakhala ndi moyo wautali, pamene ziphuphu zimagwira mpweya pang'onopang'ono ndipo zimakhala ndi moyo wautali.
Kodi Pali Umboni Wothandizira Izi?
Pali zambiri.
Mwachitsanzo, mu kafukufuku wina, ofufuza ankayang'ana mbewa zamtunduwu zomwe zinali ndi vuto mu hypothalamus.
Chilemacho chinayambitsa makoswe, omwe mwachidziwitso amatha "kugwiritsa ntchito" awo moyo mofulumira.
Chifukwa hypothalamus mu mbewa ili pafupi ndi malo oyendetsera kutentha, ubongo m'maguluwa umaganiza kuti matupi awo anali otentha kwambiri, choncho adatsitsa kutentha kwa makoswe. Zotsatirazo zasonyeza kuti dontho la .6 digiri Celsius linapereka moyo wa makoswe ndi 12 mpaka 20 peresenti, motero mbewazo zinakhala moyo wautali ndi kutentha kwa thupi.
Vuto ndiloti, sitikudziwa chifukwa chake anakhala ndi nthawi yaitali. Kutentha kwapansi kungakhale kuchepetsa kuchuluka kwa mphamvu ya mpweya wa oxygen, koma kungakhalenso kusintha machitidwe ena angapo ndi njira mu thupi.
Kotero sitikudziwa chifukwa chake mbewazo zinakhalapo nthawi yayitali, koma zomwezo sizitsimikiziranso za kuchuluka kwa chiphunzitso cha ukalamba.
Mfundo Yofunika Kwambiri
Ndipotu, pali umboni wochepa wosonyeza kuti mpweya wa okosijeni, kupweteka kwa mtima, kapena chiwerengero cha mpweya kumapangitsa munthu kukhala ndi moyo kwa moyo wake wonse.
Mfundoyi ikuwoneka ngati ikuyimira pamene mitundu yaying'ono yomwe imakhala ndi mitsempha yofulumira (ie, mbewa) ikufanizidwa ndi mitundu ikuluikulu yomwe imakhala yochepa kwambiri (ie, tortoises). Komabe, lingaliro lingathe kufotokozera momveka bwino kusiyana kwa moyo pakati pa mitundu, ndipo silingathe kufotokozera chinthu chofunika kwambiri: chomwe chimachititsa moyo mkati mwa mitundu.
Mwachitsanzo, ngati munthu akhala zaka 100, adzalandira mpweya wambiri, amadzipiritsa mpweya wambiri komanso amakhala ndi mtima wambiri kusiyana ndi munthu amene amakhala ndi moyo mpaka 80. Zomwe tikufuna kudziwa, kuchokera ku moyo wautali, ndicho chimene chimatsimikizira anthu Mitundu imakhala motalika kwambiri.
Kotero musalowe mu hibernation pakali pano. Palibe kwenikweni deta yomwe imachepetsa mphamvu ya metabolism imapangitsa moyo waumunthu.
Ndipotu, pang'onopang'ono thupi limapangitsa munthu kukhala pachiopsezo chifukwa cha kunenepa kwambiri ndi matenda ena okhudzana ndi thanzi, kotero kupititsa patsogolo kwanu ndibwino kukhala ndi thanzi labwino, kuchita masewera olimbitsa thupi, kudya zakudya zambiri komanso kukhala ndi maganizo abwino.
Zotsatira:
> Jin K et al. Mfundo Zamakono Zamakono Za Kukalamba. Kukalamba ndi Matenda. 2010 Oct 1; 1 (2): 72-74.
Sanchez Alavez M & al. Madzi a Transgenic ndi Kutentha Kwambiri kwa Thupi Lomwe Ali ndi Moyo Wowonjezereka. Sayansi . 3 November 2006: Vol. 314. ayi. 5800, pp. 825 - 828.