Circulatory kahua

Ke circulatory'ōnaehana mea he huikau paʻa pukapuka iloko olaila o elua mau pōʻai (arterial ole venous a me ka poe liilii, a me ka nui) circulatory a "kikowaena EII ni" - naau.

O na moku i mahele ia i loko o ka aa koko, ka ipu liilii loa ke koko (capillaries), a me nā arteries. Nā hōʻike Launch me ka oxygen ma-waiwai, "maemae" ke koko i nā loko a me nā'aʻaʻa. Arteries nō nā ipu oi aku ka nui i i ke kino, aole i muscular kapa. Arterial koko'ōnaehana kikowaena nui na moku, disintegrating i uuku (arterioles), a ma ka huli hana i ka mea oi capillaries pukapuka. Ka mea, lawe wahi neoneo omo a me ka hoʻokaʻawale o ka pono keia mau mea huahana a me ka oxygen. Ma capillary arterioles hui i me aa koko ma nā nā'aʻaʻa.

Venous circulatory'ōnaehana mea kuleana no ka? Iecaianoaaiiie outflow paʻa kūhohonu loa me carbon dioxide i ke koko. No kēia mau moku i ke koko huli i ka naau. Medium a me ka mea uuku aa koko i kiwikā pale ai hoʻi (aʻe neʻe) o ke koko.

Heart makana he puha muscular hui, me ka eha keʻena. Ua nā elua atria (loaa ana keena) a me nā ventricles, ke hoʻohana me he EII ni. Ka naau ua mahele ana i ka vertical paku. Ka hema ventricle, a haʻalele atrium delimited hahai kiwikā, i ka ventricle'ākau, a me ka pono atrium - tricuspid kiwikā. Ma ka nohona kiwikā e pili leaflets i kaʻaoʻao ventricular o ke kālepa ma tendons. I ka hana o ka nohona kiwikā - e ole nana e hoole ana o ke koko.

Ua hoopuni iho la ka naau o ka huina ikaika o ka eke - ka pericardium.

I haiia ae maluna,, ka circulatory nenoaia maupaʻa mau circulatory kahua. Pinepine, nae, poe akamai i olelo aku, a me ke kolu - he naau hoa kanaka. Ua Ua kaʻawale ma muli i kona waiwai, no ka mea, o ke kuleana o ia no ka hoouka. Omaka i ka p ÷ ai wahaheʻe i loko o nā coronary (coronary) arteries, i ka wao akua mai ka kumu o ka pii aorta. Komo i ka naau myocardium, ka mea hana i ka mea ulana pukapuka, a uuku arteries. Ke myocardium Ua wehewehe aku ma kekahi 'ano maikaʻi-ulu pukapuka o capillaries, ka hoʻolako' interchangeable keʻano o ka hanaʻana i loko o ka Muscle'aʻaʻa. O myocardial venous koko kahe ana i loko o ka aoao akau o ka naau ma ka coronary aa koko lehulehu. Me ka ka ho'ēmiʻana o ka naʻau Muscle ke koko, ua hana. Ma muli o ia mea, o ka holo o ka arterial koko.

Nui p ÷ hoomaka ma ke ventricle hema. Contraction o ka naau Muscle neʻe paipai 'ia ka arterial koko ma ka aorta, a laila, a pau na nā loko a me nā'aʻaʻa. Pela ka mea, he hoʻi'aiaola huahana a me ka oxygen ma saturation o ke koko aeea ha awina, a me nā huahana me ka o carbon dioxide. Ke ohi o ke koko ia lŘlŘ i loko o na aa koko ma na capillaries. Ma hope o ka luna, a malalo mea komo ke aa koko i loko o ka atrium akau, panina i ka nui p ÷ ai.

Small Circle originated i loko o ka ventricle akau. Ke koko, mai na aa koko komo i ka atrium akau, kahe ana i loko o ka ventricle akau, mai i ka malamalama komo i ka artery. Maalo ae la oia ma ka pulmonary capillaries, ka mea, ua noa ana o ke kalapona'okikene lua, a oxygenated lilo arterial, a kahe ana i loko o ka atrium hema.

Phylogeny o ka circulatory'ōnaehana mea'ālike i loko o nā mea a pau vertebrates. Ke 'ole o kēia'ōnaehana nā ka aorta, ke microcirculatory moe (me ka capillary aʻeo ka hoʻolele'), arteries, aa koko a me ka naau. Ma ke kaʻina hana o ka evolution i malama i ke kaawale ana o ka lymphatic pukapuka. Ka nui hou i loko o ka 'ole o ka circulatory'ōnaehana loaʻa i ka hoʻololi mai i ka halo o mua type hanu kaʻina i pulmonary hana.

Circulatory'ōnaehana maʻi (vascular maʻi) ua ana hana e like me ke 'ano o ka loli ana o na moku. No ka laʻana, Hohola i vascular pā pōhaku hoʻonāukiukiʻana mai o ka aneurysm. Ke aorta pinepine hoʻomōhala atherosclerotic a infectious keʻano o ka hanaʻana. Kona rupture ke'ākoʻakoʻa ma muli o ka hoʻomaopop 'ana i ka nawaliwali o na paia a me ka poino. Ke pulmonary arteries ke hana arteriosclerotic loli ana a me congenital abnormalities. Mean arterial pinepine e loli ai atherosclerosis. Na aa koko pinepine i varicose a wela ai (phlebitis).