Aripiko vasomotor centre? ukoshi hwayo

The vascular maitiro muviri kunokosha kwazvo. Zvechokwadi, nemhaka arteries uye mutsinga kunoitika ropa uye yakachena pakusununguka. Pasina chikamu ichi, vanhu havana kukwanisa kurarama. Hazvina basa basa ichi muviri vasomotor centre. Uyewo zvose pamutemo zvenhengo zviri muuropi. Achimukuvadza kune ngozi chaizvo uye kazhinji kuchipesana upenyu. Zvechokwadi, nemhaka vasomotor centre kunobva kuparadzirwa ropa kusvikira nhengo. Iyewo aoma inodzora cardiac ushande. Pasinei kuzvionera pamusoro myocardium, tsinga kuzvidzora ichiri kudikanwa.

Pfungwa yacho vasomotor centre

Pfungwa yokuti 'vasomotor centre "rinotsanangurwa seizvi: zviri ane anatomical inotungamirwa, iri muuropi. Zvisinei, ichi izwi rinofanira kunzi yakakura. Kutanga harisi muviri, asi chine idzodzo, zvinosanganisira tsinga tishu. chikamu chimwe nechimwe chiri anokonzera chaizvo mabasa. Kunyange zvakadaro, vose vanoshanda pamwe chete kuitira kuti basa kumwoyo. Izvi madhipatimendi vasomotor centre chokuita kwete vakuru chete asi anatomically. Ndiko, maererano etsinga fibers. Kokutanga pamusoro murau pamusoro vascular ezvinhu, yakasvika pakuzivikanwa mukupera kwezana remakore rechi19. In kuitisa kuedza mhuka Ovseanicov musayendisiti akawana kuti rokutema huta zvinyama yaiva pazasi colliculus, pane kuchinja BP. Physiologist akagumisa: kukanganisa mamiriro aya anoita uropi rimwe kuwedzera midziyo, uye zvimwewo chengeto. Shure kwaizvozvo pamutemo nerevane ave achishingaira kudzidza.

Location vasomotor centre

Zvinonzi vaidavira kuti vasomotor centre iri muna medulla oblongata. Asi kana tinofunga ose zvivako chokuita pamutemo kushanda ropa wedzerai, mutongo uyu hachisi chokwadi zvachose. Sezvo vasomotor tsinga fibers rakatanga ari pakati musana, uye chinhu chacho rokupedzisira ndiro cortex. Chokutanga ndivo axons - dzinotsanagura masero. Sami Tutsinga tunofambisa mashoko utwu dziri munzvimbo yepamusoro matatu lumbar uye zvose thoracal musana zvikamu. Chaiwo localization ravo - a lateral runyanga. Nokuda kwavo nzvimbo dzinonzi musana vasoconstrictor nzvimbo. Zvisinei, zita iri kwakarasika, sezvo fibers havagoni kuchinja kure nevamwe dzakabatana. medulla vasomotor centre iri muna 4 ventricle. Zviri nesumbu masero etsinga. A yakarurama localization pamusoro vasomotor centre - zviri kudzika uye pakati chikamu rhomboid fossa. Chikamu Tutsinga tunofambisa mashoko utwu iri riri reticular nokuumbwa.

Zvichitevera madhipatimendi chokuita pamutemo Links pakati ndivo hypothalamus uye nemakore uropi. Pane chiri tsinga fibers kuti ndivo nokuchinja vascular basa. Kwokupedzisira kubatana ichaongororwa kuti cerebral cortex. The zvakawanda zvinobatanidzwa chi- uye orbital injini madhipatimendi.

Vasomotor centre: physiology muviri

Kana isu fungidzira mativi ose vasomotor ino kubva pasi kumusoro, unofanira kutanga Tutsinga tunofambisa mashoko utwu riri musana. Ivo vabve tsitsi preganglionic axons (fibers). zvidzidzo izvi havakwanisi kudzora pachavo matauriro avo, asi ivo wokushandura nomunhu kune vamwe masero etsinga kumidziyo. Kokutanga iri kukosha kwavo vakaziva musayendisiti Ovsyannikov, saka kuita zvakawanikwa huru physiology. Akawana kuti kuparadzana uropi uye musana kunoitika donhwe BP. Zvisinei, pashure penguva zvakare nayo anowedzera BP (pazasi Muongororo yekutanga) uye zvinotsigirwa yakazvimiririra yakafanira preganglionic fibers. The medulla oblongata ndiyo etsinga centre - vasomotor. Hazvina basa mutemo musana dhipatimendi. physiology yake: Tutsinga tunofambisa mashoko utwu iri pakati, muzvikamu 2 marudzi. The rokutanga anokonzera pressor basa (vasoconstriction). Boka rechipiri hunokonzera kuzvivaraidza kuti endothelium. Zvinonzi vaidavira kuti Tutsinga tunofambisa mashoko utwu anokonzera vasoconstriction, mune nhamba. Masero varipo vari midbrain, anogona kukonzera rakawedzera BP. The Tutsinga tunofambisa mashoko utwu of hypothalamic nharaunda, nekusiyana, chiito sezvo kuora mwoyo, kureva, kutungamirira kutandara midziyo ropa. Vazhinji etsinga fibers vapfuure nepakati, iri medulla oblongata. Uyezve, chikamu musana axons batanidza vakaparadzana zvakananga uye hypothalamus. Front cortex inokanganisa zvose pfuma uye chinovhiringidza webasa Tutsinga tunofambisa mashoko utwu iri rezasi Links.

The weboka vasomotor muzinda mumadhipatimendi

Kwakapiwa kuti murau kuitwa akawanda vamapoka tsinga, zvinokwanisika kuti govera zvinotevera madhipatimendi vasomotor centre:

1. Musana. The lateral nyanga thoracal uye lumbar zvikamu zviri preganglionic neerekitironi. Ivo vabve axons - fibers.
2. Zvakananga vasomotor centre. Muchikamu chino dziri pakati Tutsinga tunofambisa mashoko utwu basa kutandara pamusoro endothelium uye vasoconstriction.
3. Midbrain. Masero anowanikwa muchikamu chino, anogona kukonzera aienda pamusoro mudziyo rusvingo.
4. Hypothalamic nzvimbo. Tutsinga tunofambisa mashoko utwu ndivo mhosva kutandara ose vascular rinenge chokuita zvose nepakati pacharo, uye vachiravana ne musana masero.
5. MUNDA cortex. Pasinei chokwadi kuti vakawanda Tutsinga tunofambisa mashoko utwu yaiva munzvimbo pamberi, zvinokwanisika zvaiitwa dzimwe nzvimbo uropi.

Pasinei kuvapo 5 madhipatimendi, vanachiremba akaparadzanisa vasomotor murau 2 chete mamaneja. Izvi zvinosanganisira musana uye bulbar munharaunda faibha. In kwayo sezvamunoita mamwe masero ose tsinga, bata vascular matauriro. Both classifications vanoonekwa musoro.

Vasomotor centre: Body

Sezvo chikazozikamwa, chinangwa chikuru ndechokuti waidzora vasomotor centre matauriro. Mumwe nomumwe nhengo dzayo anoita ayo pachake nerevane. Zvisinei, nokuchinja kure dzinenge imwe zvaIsau inotungamirira nokuvhiringidzirwa ropa nhumbi muviri wose. Govera zvinotevera mabasa:

1. Kuitisa pulses (anonongedzera) kubva cortical uye medulla zvikamu kuna arikunze. Izvi zvinoreva zvinokonzerwa Tutsinga tunofambisa mashoko utwu nemidziyo unokupai ari nhengo. basa iri rinoitwa kunokwana musana preganglionic fibers.
2. Kwerunyararo vascular matauriro. Chaiye oparesheni, mumwe dhipatimendi BP anodzokororwa panguva yakakodzera chechetere.
3. Kuzvivaraidza uye vasoconstriction. Zvakananga kukanganiswa muzinda riri medulla oblongata.
4. Nechokwadi ropa kuyerera zvakakwana uye kuparadzirwa kwayo nomumwe nenyere.
5. Thermoregulation. basa iri rinoitwa nokuchinja mune vascular lumen. kuwedzera kwavo kuchengetwa noushamwari ezvinhu, uye mutemo ndepana tembiricha yakaderera.

chokuita mwoyo centre

Kunze nokuti vasomotor centre ndiye anokonzera kuwedzera uye marwadzo ose endothelial zvinyama, uyewo ane zvainoita pomwoyo. Izvi zvinosanganisira masero ari lateral chikamu 4 fossa ventricle. Zvinozivikanwa kuti innervation mwoyo rinoitwa kunokwana tsitsi fibers. Pavari vari zvinodiwa medulla oblongata. Somugumisiro pakati activation mwoyo. Izvi kunoratidzwa tachycardia. The kwakaderera mwoyo nebasa Tutsinga tunofambisa mashoko utwu ari vasomotor centre zvakare kuzopindura. Ivo dziri mune medial chikamu. Kubva ipapo, kuti zviratidzo kuenda dorsal nuclei ari vagus etsinga. Pasinei chokwadi kuti mumwe kushanda pomwoyo ndizvo automatism, huchishanda hazvibviri pasina nezvokupindira wouropi.

Mutemo vasomotor centre

Simba vasomotor centre Tutsinga tunofambisa mashoko utwu riri medulla, anogona cortical mamiriro. Pashure pezvose, ndivo chikuru mashandiro ari mutemo rezasi mapoka. Cortical Tutsinga tunofambisa mashoko utwu angaita zvese kuderera uye yakawedzera vasomotor centre basa. Uyezve, panewo dzepanguva murau. Voitakura kunze chete carotid sinus uye kutsemuka Arch. Izvi imhaka kuti mechanoreceptors. Pamusoro pemvura yacho pulses vanomutswa achitevedza vagus uye depressor tsinga kuti vasomotor nzvimbo. Panguva depressant basa dhipatimendi ichi kunosimudzirwa. Somugumisiro, tsinga kuzorora uye BP. vasodilation uyewo hunokonzera activation ari musimboti vagus tsinga.

vasomotor centre matauriro kuchinja

Nokupesvedzera siyana zvinoita kuitika dysregulation. Somugumisiro yacho vasomotor matauriro dzinosiyana pakati. Under kwomuzvarirwo ezvinhu, izvi zvinoitwa kuburikidza dzepanguva mutemo. Kana zvokurwara kutyora matauriro. Miyenzaniso siyana vascular zvirwere, atherosclerosis, kufutisa. Uyewo, zvinoderedza kana kuwedzera inzwi richinjwe zvinogona kugadziridzwa pasi nemadhiragi (zvinodhaka antihypertensive, vasopressors).

Mugumisiro namakemikari musi Vascular Center

Direct kukanganisa dzose zvigadziriswe pakati vascular ino vanogona makemikoro mumuviri. Muenzaniso carbon dioxide inobvisa iyo rinoungana muropa panguva okisijeni kushaikwa (kufema). Achifuridzirwa fuma iyi vari kwakamutsa vasomotor centre. In Muzviitiko zvakaipisisa, kwenguva refu kushayikwa okisijeni kungaita kuti rutivi rwomuviri.