Human blood pressure

Umfutho wegazi umuntu ingcindezi ingqikithi yonke imithambo emzimbeni. Ngo imithambo ezahlukene - ingcindezi lihlukile. Kuyinto ayanda, aba maningi ububanzi futhi eduze inhliziyo. Iningi high blood pressure ku-aorta - izitsha main, emfantwini kusukela i-ventricle engakwesobunxele.

Human blood pressure siqukethe Izinombolo ezimbili, "phezulu kanye phansi". "Upper" ingcindezi - lena okuthiwa ingcindezi inhliziyo. Kuyinto ngenxa umsebenzi inhliziyo, amandla ngalo inhliziyo iphampa igazi ku le-aorta. "Lower" ibonisa ithoni imithambo yegazi yomzimba, esithinta nezinso. I parenchyma izinso juxtaglomerular kuyinto apharathasi ohlinzekela ingcindezi amathonsi uqale ukusebenza uhlelo angiotensin-aldosterone, okuholela ekwandeni ukuthunjwa reverse yamanzi izinso futhi, ngokufanelekile, ukwanda umthamo wegazi, ukukhuphuka ingcindezi.

Human blood pressure ziyahlukahluka ngaphakathi kwemikhawulo ebanzi: phezulu - kusuka 90 kuya 139, kanye aphansi - kusuka 60 kuya 89. Kukhona umcabango we yokusebenza ingcindezi. Le ngcindezi ngokuvamile enjalo, okuyinto sici isiguli esithile kokuvamile.

Human blood pressure ingase ixhomeke endleleni abaningi ezicini imvelo: isibonelo, isimo sezulu esishisayo kuyehla ngenxa vasodilatation reflex (ukubuyiselwa kwanoma ukushisa) futhi ukulahlekelwa uketshezi umjuluko. Lapho palpitations, okuzovela, isibonelo, ngenxa lenyuka umsebenzi ngokomzimba noma ukwethuka, umfutho wegazi kungathuthukiswa. Lapho ushintsho elibukhali isikhundla umzimba kusuka enezingqimba mpo kungenzeka ukusebenza orthostatic esizibonakalisa blackout nokunsonsotha. Khona kanye ukubukeka kwawo kungenxa yokuthi izitsha inhliziyo akakwazi asabela ngokushesha izinguquko isikhundla umzimba emkhathini, futhi ukucindezela kwaba ongaphakeme.

Human blood pressure kulawulwa isimiso sezinzwa, kanye hormone. Emini ingcindezi iyakhona ekushintsheni ukusebenza yabo kakhulu. Ephusheni, kuyehla emini (ikakhulukazi ngaphansi kokucindezeleka) - iyakhula.

Kufanele kuqashelwe ukuthi kungase kube ezahlukene blood pressure ngezandla ezahlukene. Kodwa uma umehluko lingaphansi kuka 5 mm HG. Art., Ke akunancazelo emtholampilo. Ukukhomba umehluko engaphezu kuka-10 mm HG. Art. ubufakazi Umthambo olugcwele ku ingalo ingcindezi kancane.

Ingcindezi emazingeni ahlukene ingase ihluke kancane. Ngokwesibonelo, ingcindezi igazi e intsha esikhulakhulile zingandiswa. Uma izithelo zawo akuyona ngenxa zokugula, wegazi - lezivakashi futhi umnene. Lokhu kungenxa yokuthi izingane zivama ukuba fuzz ft noh hujan (okusho ukuthi 'zinezikhathi i msebenzi omkhulukazi), kanye isiqondiso Neuro-endocrine phakathi nokuthomba.

Ngaphansi kwezimo ezihlukahlukene bokuphila yezinguquko ingcindezi. Lapha, ngokwesibonelo, igazi ingcindezi ngesikhathi sokukhulelwa wande, okungase kube uphawu lwesifo esibi - pre-eclampsia. Ngakho-ke, igazi ingcindezi kubantu besifazane abakhulelwe kumele njalo ukugadwa. Uma kungakapheli isonto elilodwa, umfutho wegazi ngenhla izikhathi ezivamile ezimbili noma ngaphezulu kumele esolwa zangaphambi eclampsia.

Phakathi nenkathi yokukhulelwa evamile ingcindezi izinguquko. Hormone yokukhulelwa, progesterone, kubangela ukuphumula izindonga imithambo yegazi, okuholela ingcindezi sinciphile orthostatic oluqinisayo umphumela. Inani elikhulu progesterone akhiqizwa phakathi nokukhulelwa - kuyinto hypotension kungenzeka kule nkathi. Ngu ngenyanga yesithupha yokukhulelwa yomzimba wowesifazane iqukethe kuka mayelana 2.5 amalitha igazi - lokhu kuyinto umthwalo ezengeziwe emzimbeni wakhe. Ezinsukwini zokugcina zokukhulelwa blood pressure ubuyisela ukubaluleka salo esivamile.