Uxinzelelo lwegazi Human

blood pressure mntu uxinzelelo lilonke yonke imithambo emzimbeni. In imithambo ezahlukeneyo - xi eyahlukileyo. Yeyona ephakamileyo, kokukhona ubukhulu kwaye kufutshane entliziyweni. Uninzi kwegazi eliphezulu kwi aorta - iimpahla eziphambili, amdaka ukusuka ventricle ngasekhohlo.

uxinzelelo lwegazi Human iqulathe lemivo emibini, "phezulu nasezantsi". "Upper" uxinzelelo - oku xi ekuthiwa-inhliziyo. Kungenxa umsebenzi wentliziyo, amandla ngayo intliziyo iimpompo igazi kulo aorta. "Lower" ibonisa ithoni kwemithambo yegazi lomzimba, ethi ichaphazele izintso. Le parenchyma juxtaglomerular kidney yi izixhobo elibonelela ngamathontsi uxinzelelo ukuqala inkqubo angiotensin-aldosterone msebenzi, nto leyo ekhokelela ekunyukeni lokufakwa reverse ngamanzi kwizintso, kwaye ngokufanelekileyo, ukwanda umthamo wegazi, ukwanda koxinzelelo.

uxinzelelo lwegazi Human ingahluka phakathi imida ngokubanzi: top - ukususela 90 ukuya 139, kwaye uphantsi - ukusuka kuma-60 ukuya 89. Kukho ingqikelelo yoxinzelelo yokusebenza. Le ngcinezelo ngokuqhelekileyo ezinjalo, nto leyo ehambisana umguli othile kwisiqhelo.

uxinzelelo lwegazi Human kunokuxhomekeka emininzi imiba yokusingqongileyo; umzekelo, xa imozulu eshushu lifinyele ngenxa vasodilatation reflex (ukubuya ubushushu) kunye nokulahlekelwa fluid evela xhopho. Xa iyangongoza, ezivela, umzekelo, ngenxa msebenzi ngokwasemzimbeni okanye kukothuka, uxinzelelo lwegazi kungaphuculwa. Xa utshintsho elibukhali kwi omzimba ukusuka tyaba mpo Inokwenzeka isiphumo intolerance esizibonakalisa blackout kunye ukuntlontlozela. Ukubonakala kwaso kungenxa yokuba izitya nentliziyo lingenako usabele ngokukhawuleza utshintsho omzimba kwisithuba, kwaye pressure ephantsi.

uxinzelelo lwegazi Human lilawulwa luvo, kwakunye hormone. Emini xi okwazi nokutshintsha intsebenzo yabo. Ephupheni, oko kuyehla emini (ingakumbi phantsi koxinzelelo) - ukunyuswa.

Kufuneka kuqatshelwe ukuba ibe uxinzelelo eyahlukileyo igazi ngezandla ezahlukeneyo. Kodwa ukuba umahluko mncinci kuno-5 mm HG. Art., Kuba akukho ukubaluleka clinical. Ekuboneni umahluko phakathi ngaphezu kwe-10 mm HG. Art. ubungqina Umthambo ukuvala kwi ingalo kangako.

Ingcinezelo kwi yobudala ahlukeneyo zisenokwahluka kancinane. Umzekelo, uxinzelelo igazi olufikisayo lungandiswa. Ukuba indyebo yawo ngenxa ngezifo, uxinzelelo lwegazi - idlule kunye nowobulali. Oku kubangelwa kukuba abantwana badla ukuba nomdlandla (okt ukuba ebalasele umsebenzi okwandileyo), kwakunye nokulawula neuro-yonyango xa ufikisa.

Phantsi kweemeko ezahlukeneyo komzimba lutshintsho kuxinzelelo. Apha, umzekelo, igazi ingcinezelo ngexesha lokukhulelwa wande, nenokuthi kube uphawu isifo esimandundu - pre-eclampsia. Ngoko ke, igazi xi abasetyhini abakhulelweyo kufuneka rhoqo esweni. Ukuba phakathi kweveki, uxinzelelo lwegazi ngaphezu ngamaxesha aqhelekileyo ezimbini okanye ngaphezulu kufuneka kukrokrelwa pre-eclampsia.

Kuyo ukukhulelwa xi eziqhelekileyo utshintsho. Hormone yokukhulelwa, dlala, ebangela ukunyenyiswa yeendonga semithambo, kubangele uxinzelelo sinciphile kwaye nefuthe nokomelezwa intolerance. Inani elikhulu dlala eveliswa embindini ukukhulelwa - na hypotension kunokwenzeka kweli xesha. Yi ngenyanga yesithandathu yokukhulelwa umzimba yomfazi iqulathe ngaphezulu malunga 2.5 iilitha igazi - oku umthwalo owongezelelweyo emzimbeni wakhe. Ngemihla yokugqibela uxinzelelo lwegazi ukukhulelwa ubuyisela ixabiso layo eqhelekileyo.