Human jini

Jini mutum ne total matsa lamba na duk na arteries a cikin jiki. A daban-daban arteries - matsin lamba ne daban-daban. Shi ne mafi girma, da girma da diamita da kuma kusa da zuciya. Mai hawan jini a cikin lakã - babban tasoshi, da effluent daga hagu ventricle.

Human jini kunshi biyu lambobi, "saman da kasa". "Upper" matsa lamba - wannan shi ne abin da ake kira cardiac matsa lamba. Shi ne saboda da aikin na zuciya, da karfi da abin da zuciya farashinsa jini a cikin lakã. "Lower" nuna sautin na jini na jiki, wanda rinjayar da kodan. A parenchyma juxtaglomerular koda yake an na'ura wanda ya samar da ga matsin saukad fara aiki angiotensin-aldosterone tsarin, wadda take kaiwa zuwa wani karuwa a baya kama da ruwa a koda kuma, daidai da, wani karuwa a jini girma, a matsa lamba karuwa.

Human jini iya bambanta a cikin m iyaka: saman - daga 90 zuwa 139, da kuma ƙananan - daga 60 zuwa 89. Akwai manufar aiki matsa lamba. Wannan yawanci irin wannan matsin lamba, wanda shi ne halayyar da musamman haƙuri ga al'ada.

Human jini iya dogara a kan da yawa dalilai na yanayi: misali, a cikin zafi weather an rage saboda reflex vasodilatation (ga dawowar zafi) da kuma m asarar daga gumi. Lokacin da palpitations, tasowa, misali, saboda ya karu jiki aiki ko tsoro, jini za a iya inganta. Lokacin da mai kaifi canji a jikin matsayi daga kwance zuwa tsaye na iya faruwa orthostatic sakamako wanda bayyana Ɓoyo da tingling. Its bayyanar shi ne saboda gaskiya da kayayyakin da zuciya ba zai iya amsa da sauri zuwa ga canje-canje a cikin jiki matsayi a sarari, da kuma matsa lamba da aka low.

Human jini da aka kayyade ta juyayi tsarin, kazalika da hormones. A lokacin da rana da matsa lamba da yake iya canza su yi muhimmanci. A cikin mafarki, shi ne rage lokacin da rana (musamman a karkashin danniya) - ƙaruwa.

Ya kamata a lura da cewa shi yana iya zama wani daban-daban jini da daban-daban hannuwanku. Amma idan bambanci ne kasa da 5 mm Hg. Art., Ba shi da wani asibiti muhimmanci. Identification na bambance-bambance a fiye da 10 mm Hg. Art. shaida na jijiya takaita a hannu tare da kasa da matsa lamba.

Matsa lamba a shekaru daban-daban za su iya bambanta dan kadan. Alal misali, jini a matasa za a iya ƙara. Idan ta karuwa ne ba saboda da wani Pathology, da jini - mai shudewa da kuma m. Wannan shi ne saboda gaskiyar cewa yara sukan kasance hyperactive (watau su ne halin da wani karin aiki), kazalika da neuro-endocrine tsari a lokacin balaga.

A karkashin daban-daban physiological yanayi canje-canje a matsa lamba. A nan, misali, jini matsa lamba a lokacin daukar ciki na iya kara, wanda zai iya zama wani alama na tsanani cuta - pre-eclampsia. Saboda haka, jini matsa lamba a ciki mata ya kamata a kullum kula. Idan a cikin mako guda, jini a sama al'ada biyu ko fiye da sau ya kamata a da ake zargi da pre-eclampsia.

Cikin ciki da al'ada da matsa lamba canje-canje. A hormone na ciki, progesterone, Yanã shigar da shakatawa na jijiyoyin bugun gini ganuwar, sakamakon rage matsin lamba da kuma orthostatic karfafa sakamako. A mafi girma adadin progesterone samar a cikin tsakiyar ciki - shi ne zai yiwu hypotension a cikin wannan lokaci. By ga watan shida na ciki mace ta jiki ƙunshi fiye game da 2.5 lita na jini - wannan shi ne wani ƙarin nauyi a jikin ta. A kwanaki na ƙarshe na ciki jini ya mayar da al'ada darajar.