A tsarin da dabbobi masu shayarwa kwakwalwa - nasarar juyin halitta!

A tsarin da kwakwalwa na dabba shi ne da gaske daban-daban daga cikin halaye na kwakwalwa da kwakwalwar mutum da sauran halittu masu rai, don haka shi ne yawanci a rarrabe kamar yadda mai raba irin.

Kwakwalwa na dabbobi masu shayarwa ne manyan isa, sakamakon da binciken, da most yanki bautar da ake kira da forebrain, located sama da tsakiya da kuma matsakaici. A general tsarin mai dabbobi masu shayarwa kwakwalwa da aka kafa a sakamakon juyin halitta daga zamanin d dabbobi, da kuma shi ne dangane da ikon wari. Babu wani daga cikin sauran vertebrate ba shi da irin ji na ƙwarai to kamshi.

The kowa sunan dabba kwakwalwa - sakandare vault. Harhada cibiyar da duk na kwakwalwa da aka dauke su cerebral bawo. Don sadarwa tare da waje duniya dabbobi masu shayarwa forebrain ne ke da alhakin, ko da frontal lobes.

kwakwalwa na dabba mai shayarwa kwakwalwa tsarin da aka kafa a irin wannan hanyar da gaba, na daga shi zuwa iyakar size, kazalika da cerebellum, da matsakaiciyar rabo daga kwakwalwa kadan karami, kuma mafi karami size ne tsakiyar ɓangare.

Jijiya endings hade da laka da kuma watsarwa sakonni zuwa daban-daban gabobin na dabba suna located in da medulla oblongata.

Daban-daban sassa na kwakwalwa na dabbobi masu shayarwa suna da alhakin wasu rayuwa matakai da kwayoyin. Saboda haka, shi ne a cikin tsaka-tsaki sassa na kwakwalwa sarrafa gani bayanai tsĩrar da mutane. Bugu da kari, da thermoregulation tsari na faruwa godiya ga kulawar da wannan jiki.

Wanda bai yankẽwa aiki ne sarrafawa da pituitary gland shine yake da endocrine tsarin, da kuma duk bayanai samu ne bincikar a cikin talakawan kwakwalwa.

Domin ci gaba da ma'auni na dabba mai shayarwa, kazalika da ma'auni na mota tsarin a general, bukatar yin aiki cerebellum. A asali rai goyon bayan tsarin da nasu iko cibiyoyin a cikin medulla oblongata.

dabba wajen wuya kwayoyin, kuma an yi imani da cewa da hankali yana daukan na biyu wuri bayan da mutum. Wannan ne hujja ba kawai tsarin da dabbobi masu shayarwa kwakwalwa, amma da taro dangi zuwa da taro na laka. Alal misali, mai rarrafe da kafafu kwakwalwa da kuma laka auna game da wannan, alhãli kuwa a cikin dabba kwakwalwa taro ya wuce kashin baya uku, ko ma su goma sha biyar sau, dangane da nau'in.

Wasu yankunan na kwakwalwa a daya jinsin ci gaba karfi, weaker fiye da sauran, dangane da yanayi na dabba habitats. Alal misali, idan mafi yawan lokaci na rana rayuwa na dabba mai shayarwa - da dare, mafi ci gaba a wannan dabba hangen nesa. Idan muna magana ne game da mazaunan kandami ko fadama, shi ne lura da cewa irin wannan dabba mai shayarwa za a sosai raya ji da wari. An togiya aka dauke su a Whale, wanda olfactory tsarin ne quite rauni.

A cikin kwakwalwa na dabba ne 12 nau'i-nau'i daga girman kwanyar jijiyoyi. Shugaban dabbobi masu shayarwa jijiyoyi alhakin ba kawai don ji, da ganunuwa da wari, suna kuma kai tsaye da hannu a cikin samuwar autonomic tsarin.

Masana kimiyya sun tabbatar da cewa tsarin da wani dabbobi masu shayarwa kwakwalwa da aka kafa miliyoyin shekaru. Kuma magabatan zamani dabbobi ne dabbobi da cewa suna da wani farauta ilhami, samar da nasu abincin dare tare da taimakon wani da kyau-ci gaba ji na wari da kuma gani. Idan muka kwatanta da na zamani fauna, su ci gaba da aka located game da rabi tsakanin zamani dabbobi masu shayarwa da dabbobi masu rarrafe. Yadda samuwar faru kwakwalwa, da masu bincike don haka ba gaba daya da aka sani. Amma daidai saboda mataki na ci gaba na zamanin d dabbobi zai iya muhimmanci gyara, to rayu har zuwa wannan zamanin, da kuma wasu - don zama makawa mataimaka mutum.