Ropa wedzerai uropi, chiropa uye itsvo

Nyaya ino inotsanangura dzimwe nuances ropa wedzerai inokosha zvomukati sezvinoita uropi, chiropa uye neitsvo.

Cerebral ropa kuyerera

ropa kuyerera zvachose kuti muuropi achiri kugara, uye zvakasimba kumusoro zvakakwana. Kana ropa riyerere vomuungano dzakasiyana-siyana uropi, zvikaonekwa nokuda kusimba kushanda kwavo. Saka, apo basa rinonetesa aibuda vemo chepfungwa ropa racho goko anogona kuwedzera maviri rwakakoshwa vachienzaniswa kusimba ropa riyerere pa zororo.

In mashoko kuomarara uye tightness womunhu dehenya zvachose nemishonga kuti chepfungwa midziyo muduku dhigirii novimba kuchinja BP. Saka, kana kumanikidzwa ari arteries kunoitika kuwedzera zvavo, izvo zvinozoita kunowedzera kwokudzvinyirira kwomunhu doro, ayo water drainage mhango uye musana compression mutsinga. Panguva iyoyowo vasanyanye arterial nemishonga uye kuwedzera venous nemishonga. Saka, cerebral vascular nemishonga, zvarwo, anoramba kushanda kuchinja.

Myogenic zvazvinoita ropa riyerere chepfungwa riri zvinoberekwa zvinoitwa anotsvedzerera tsandanyama ropa nhumbi uropi kuti kuchinja kumanikidzwa mavari. Rinoreva kuti nechepakati chikwata autoregulyatsionnoy gadziriro chepfungwa kutenderera.

Simba chepfungwa ropa riyerere controller riri munyaya voltage pamwero mukuru arterial ropa carbon dioxide inobvisa uye akabatanidza ph pamwero cerebrospinal mvura.

Metabolic zvinosuruvarisa ropa riyerere chepfungwa kunokosha kuti omunharaunda redistribution ropa riyerere pakati pfungwa nzvimbo, apo dzichipfekeka basa mumwe ezvinhu nomumwe ane zvakasiyana chechetere. Kana yomunharaunda kuwedzera kushanda basa masero etsinga ari extracellular svikiro kunowedzera wevasungwa kuti potassium ions uye adenosine. Izvi zvinozoita kunoguma vemo vascular akawedzera nokuwedzerwa ropa riyerere mumidziyo.

Neurogenic zvazvinoita ropa riyerere chepfungwa vanoonekwa kuti zvishoma vanobudirira pane metabolic mutemo. The chikuru nzvimbo chikumbiro ndiyo nzvimbo chepfungwa arterial midziyo, dhayamita 25-30 microns. Kwainyanya kubva neurogenic zvinosuruvarisa ropa riyerere chepfungwa vanoonekwa tsitsi postganlionarnye faibha. Kunyanya kutya mutemo rwekutaura kunoenderana autoregulyatsionnoy voltage O2 uye CO2, kutanga vascular matauriro, yevasungwa uye Zvinoumba ions, uye pamusoro kuvapo muna cerebrospinal mvura uye uropi pakugadzira zvinoshingaira zvinhu.

ropa wedzerai chiropa

Pamusoro vaipinda pasuwo hepatic chiropa tsinga uye tsinga, ndiye nokupesana kwavo mumidziyo zviduku kakawanda, pamwe yose bile mutsinga dzinofamba nemukaka. Interlobular tsinga uye tsinga pamwe interlobular interlobular mutsinga dzinofamba nemukaka ndohwaJehovha vanonzi "vanamwari vatatu vatatu chiropa." Node nodes dziri pedyo. From vokrugdolkovyh arteries uye mutsinga capillaries kuenda vakasungwa nokuda hepatic lobules uye kubatanidzwa nomumwe panguva arikunze yavo, pova intralobular midziyo. Maererano naye ropa anomhanya yakavhenganiswa nenzira pakati zvikamu kubva arikunze uye inounganidzwa nenzira nechepakati tsinga, izvo inotangira krovoottok kuti zvidimbu mu sublobular mutsinga, izvo zvinoumba zvikuru hepatic mutsinga kusiya.

itsvo ropa zvitengeswa

Tsinga, nhengo dzomuviri pasuwo rinokamukana kupinda arteries, kuparara, uyewo, pamusoro interlobar tsinga. At kumuganhu cortex uye medulla, vanopfuura kupinda tsinga anomuitira arcuately uye akaererana pechiso itsvo. Kubva arteries izvi inosiya vazhinji mutete interlobular arteries, izvo kutungamirirwa muviri pamusoro. Perfusion renal medulla akatakurwa dzakatwasuka arterioles, arteries pakukoka kubva chinhu chakakombama. Pfupi matavi lateral pamusoro interlobular arteries vari nhengo glomerular Kamudzira. It matavi zvakaitika kupinda rirambe richibvira Network. Zvadaro batanidza kuti arterial capillaries uye inotungamirwa efferent arterioles.