I ke koko lako i ka lolo, ake a me nā puʻupaʻa

He 'atikala ho'ākāka kekahi o na nuances o ke koko lako i nui na nā loko, e like me ka lolo, ake a me nā puʻupaʻa.

Cerebral koko

Huina koko a hiki i ka lolo , kŘpa a, a me ka pinepine 'mea kiʻekiʻe nui iho la ia. Like no ka mea kūloko koko i loko o nā wahi likeʻole o ka lolo, ka mea, ua nānā 'ia e ka nui o kā lākou hana. Penei, ka wā māluhiluhi hana kūloko cerebral koko i loko o kona pńpa hiki māhuahua mau ana i threefold like me ka nui o ke koko ma koena.

Ma hua'ōlelo o ke oolea a me ka tightness o na kanaka iwi poʻo huina ia'ku o cerebral moku a hiki i kekahi mau mea e kaukaʻi ma luna o nā hoʻololi i loko o ke koko,. Ke'ī mai, i ka wa a ka puʻe i loko o nā arteries ia lŘlŘ lākou? Anoe?, A ma ka huli maoli i ka puʻe o ka waiona, kona outflow lua a me ka spinal kaula mīkini'opihia aa koko. I ka Ia manawa i emi ma ka arterial ia'ku, a māhuahua venous e kū'ē'ē mai. Penei, ka cerebral vascular ia'ku, ma ka mau, koe kokoke ua hoʻololiʻia.

Myogenic hopena ma cerebral koko ua hua mai ma reactions o ka pahee Muscle o na moku koko o ka lolo i ka loli ma ka puʻe i loko o ia mau mea. Ua pili ia i ka kikowaena mokuna autoregulyatsionnoy nenoaiu cerebral holo.

Potent cerebral koko eiioeieeae ua noʻonoʻo i loko o ke anakahi uila kiʻekiʻe o ka arterial koko i carbon dioxide, a me ka pili pH kiʻekiʻe o cerebrospinal loli.

Metabolic 'ole ma cerebral koko mea nui no kūloko redistribution o ke koko ma waena o lolo mau mea, ma a ka ooieoeiiaeuiiai hana o kēlā me kēia kanaka kulana home' ole mai i kaʻokoʻaʻilikai. I ka wā o ka kūloko mea ulu i loko o ka ooieoeiiaeuiiai hana o nā aʻalolo keena ma ka extracellular meakino maoli i ka lehulehu o ka potasiuma Ion a me adenosine. Kēia i ka huli i nā hualoaʻa ma ka kūloko vascular hoʻonui, a mahuahua koko i loko o na moku.

Neurogenic hopena ma cerebral koko e manaoia e e emi kona mana ma mua o ka metabolic rula. I ka papa kuhikuhiE wahi o ka noi o ka wahi o ka cerebral arterial moku, anawaena 25-30 microns. I ka papa kuhikuhiE kumu o neurogenic loa ma cerebral koko e manaoia kōkua aloha o postganlionarnye puluniu. Pili kēia ko mākou hopohopo rula hooponopono o ka 'aoʻao o hilinaʻi nui autoregulyatsionnoy anakahi uila O2 a me CO2, e hoʻomaka ana vascular leo, lehulehu a me ka haku mele' ana o ka Ion, a me kekahi ma ka alo i loko o ka cerebrospinal loli a me ka lolo'aʻaʻa biologically hana waiwai.

i ke koko lako i ke ake

I ko lakou komo ana i ka puka hepatic ake artery a me ka aa koko, o ko lakou mau papa i mau moku uuku, pu ma ka bile leki uea. Interlobular artery a me ka aa koko me ka interlobular interlobular leki uea e pili ana i ka ai-kapaia "triad ake." Lymph aka wahi e ke aupuni 'kokoke. Mai vokrugdolkovyh arteries a me aa koko capillaries e haele oukou pela e paa ana no ka hepatic lobules a merging ma kā lākou periphery, ho okumu i intralobular moku. E like me na la i ke koko e holo hui ma ke ala e hiki aku ana i ka piko Hoʻohana mai ka periphery, a ua ohi ia i loko o ke kikowaena aa koko, i hoʻomaka ma krovoottok o slices ma sublobular aa koko, a hana i ka nui hepatic aa koko e waiho ana.

hakuʻala koko lako

Artery, he lâlâ 'o ke kino o ka puka i hookaawale ai i loko o ka arteries, disintegrating, ma ka huli, ma ka interlobar artery. Ma ka palena o ka cortex a me ka medulla, e hele i loko o ka artery hiki arcuately a me laua a hiki i ka ili o ka hakuʻala. Mai kēia mau arteries koe he nui helu o lahilahi interlobular arteries, a i kuhikuhi ai i ke kino ili honua. Perfusionʻaʻa puʻuwai medulla lawe pololei arterioles, arteries e holo ana mai o ka piʻo. Pōkole kīloi paʻewa lālā o ka interlobular arteries i kekahi hapa o ka glomerular mea hōʻikeʻikeʻuʻuku. Ia na lala kekahi, i loko o ka capillary pukapuka. A laila, merge ka arterial capillaries a me ka ho okumu ana o efferent arterioles.