Mtima vavu: mbali zamoyo pachipata

Valavu zida za mtima imagwira ntchito yofunika kwambiri ya kuonetsetsa yoyenera magazi. Aliyense vavu mtima (a okwana anayi), synchronously kutsegula ndi kutseka, kumathandiza kayendedwe ka otaya magazi motsogozedwa iwowo. Amene amapereka kugwirizana changwiro ndi cholondola mkulu wa limagwirira lonse wa limba chapakati cha thupi.

Ngati Tikayerekeza chipinda mtima ndi pachipata, valavu mtima atenge mbali ya mapiko ake. Aliyense wa iwo ali ndi makhalidwe komanso cholinga. Kung'ambika vavu mtima ntchito kutseka pakhomo kwa msempha. Anatomically, tichipeza mapiko atatu ofanana crescents lapansi. Pamene kumanzere ventricle mtima, izi vavu kuchepetsa amalola magazi mu msempha.

Mitral valavu ndi dongosolo clamshell, yomwe ili pakati pa ventricle kumanzere ndi atrium, khomo lomwe atseka, potero popewa ndi n'zosiyana akulowera magazi. Flasher wake maloboti kwathunthu ndi ventricle kumanzere.

Tricuspid valavu wa mtima, umatchedwanso tricuspid lili pakati pa ventricle ndi atrium ndi kumanja, monga Umboni dzina lake, ali ndi dongosolo zitatu. Mu boma lotseguka, chitadutsa magazi kuchokera atrium mu ventricle M'mimbamo, kudzazidwa kwathunthu kwa kamene kamayambitsa minofu chidule anachita, umene valavu kutsekedwa amapezeka. Amene kumathandiza n'zosiyana kayendedwe ka magazi ndi kuonetsetsa makope ake m'njira yoyenera.

M'mapapo mwanga valavu, yomwe ili pa wolandila Muzifunsa thupi ili, zipangitsa kayendedwe ka magazi loyenda ku ventricle ufulu mitsempha m'mapapo mwanga. Ichi ndi kapangidwe ambiri ndi cholinga zinchito za mtima valvular zida. Choncho zimaonekeratu kuti uziyenda yosalala ya magazi dongosolo lonse la lolamulila ndi Zimatheka ndi yosalala ndi changwiro ntchito kwa limagwirira kwachilengedwenso.

Mbali khalidwe la mavavu ndi kuti ali pansi nthawi zonse ntchito makina zagonjetsedwa kwa katundu mkulu. Akuti pa makumi zaka za kayendedwe ka moyo wa mavavu ndi kutulukira zinthu - ndi kutsekedwa kwa nthawi zoposa biliyoni. Izi kawirikawiri zimabweretsa pathologies zosiyanasiyana. Pamakhala (kutseka kuti uchiwo usatuluke) mavavu wathanzi wochepa thupi kwambiri kusintha nsalu wangwiro zojambula mawonekedwe. Mwachibadwa, ngati nsalu ndi poyera kuvala. Komanso, matenda zambiri zimayamba ndi vuto lobadwa. mavavu mwina imawonongeka ndi owonongeka chifukwa yokutidwa kuukira enaake ophwanya, matenda osiyanasiyana, zifukwa chibadwa, chifukwa kusintha obwera ndi ukalamba, matenda a mtima , ndi kuchuluka kwa zinthu zina.

Zonsezi zingachititse stenosis (kuchepetsa wa polowera) kapena kulephera (ndi chosakwanira kutsekedwa kutseka kuti uchiwo usatuluke a). Nthawizina Zikatero kungafune opaleshoni ya mtima vavu zomwe nzofunika kubwezeretsa kapena kusinthanitsa. Ngakhale zamakono ndi zipangizo n'zotheka kuti agwire osiyanasiyana ndi wovuta ndondomeko ndi Mwina kwambiri ndi moyo chiopsezo akadali kwambiri.

Ambiri lero imachitika opaleshoni kukhazikitsanso ndi "Chimaona" mtima vavu - ndi mitral. Ngati kuwononga kwambiri ndondomeko vavu m'malo nthawi zambiri chipulumutso chokha kwa wodwala. Opaleshoni, ndi zobvuta zake zonse ndi wapamwamba kwambiri kuposa mawu a mphamvu ya chithandizo chamankhwala.