Chipika atrioventricular

Zamtima matenda - mliri wa munthu masiku ano. Ndipo mmodzi wa matenda ambiri mtima ndi chipika mtima. Matendawa amapezeka matenda a zikhumbo kuti ventricles lapansi. Pakati pa mitundu ya kudwala izi secrete yopingasa (chipika msonkhano Ashofa-Tawara) ndi kotenga, pamene wosweka atagwira nyemba mmodzi wa miyendo ya mtolo wa Ake.

Ponena za anatseka misewu, ndi Dziwani komanso ode kwa yosiyanasiyana yokulirapo - chidzalo cha chitukuko. Ndi chosakwanira chipika AV amasiyanitsa zili m'munsizi.

Atrioventricular chipika woyamba nyemba digiri likhale imene angapo anachedwa. Pa cardiogram akuwonetseredwa elongation imeneyi P-Q, limapezeka kaŵirikaŵiri.

Pamene anatseka misewu ya digiri yachiwiri, ena zimachitika si analandira kuchokera atria kuti ventricles lapansi. The ECG anapatsidwa chithunzi amaoneka ngati kutalikitsa pang'onopang'ono kwa P-Q imeneyi ndi nthawi imfa yamitsempha yamagazi zovuta. Ndiye mkombero wabwezeretsedwa, ndi slowdown wa anati kachiwiri.

Chachitatu digiri atrioventricular chipika yodziwika ndi munthu wabwinobwino intervals matenda chidule mkombero ndi nthawi mpweya wa zovuta amachititsa chidule cha ventricles lapansi. Tsankho blockage si owopsa poyerekeza akuchedwa zonse za nyemba za.

Polemba wathunthu AV chipika, kufala kwa zikhumbo ku atria kuti ventricles, ndi kosatheka. Chifukwa cha zimenezi, ventricles mgwirizano mu mungoli yake. The ECG akuwonekera yosowa kwambiri pafupipafupi kupanga maofesi yamitsempha yamagazi ndi makonzedwe awo mwachisawawa, mmene yotsirizira akhoza superimposed pa matenda a.

Kulankhula mwa maonekedwe matenda, ndi Dziwani kuti anatseka misewu ya mlingo woyamba (tsankho) ndi wapezeka lokha pa electrocardiogram lapansi. Auscultation kudziwa otsiriza kovuta. Complete anatseka misewu kukomoka bradycardia, amene sasintha ngakhale pambuyo womberani. Koma zizindikiro auscultatory ndiye kuti wathunthu chipika AV, ankaikira otchedwa "mfuti kamvekedwe," umene umachitika munthu nthawi kuchepetsa ventricles ndi atria. Komanso, pamene pafupipafupi ikagwa makumi atatu yamitsempha yamagazi kumenyedwa ndi zochepa minutumogut anati khalidwe imfa yadzidzidzi ya kutsitsimuka, komanso Amowabu kulephera mtima, sachedwa kupitirira.

chipika Atrioventricular angayambe paokha nthawi zonse yoyamba matenda aliwonse. Nthawi zambiri kuyambitsa izi myocarditis kudwala (diphtheria kapena rheumatoid), m'mnyewa wamtima infarction ndi inatsekeratu insufficiency.

Chithandizo blockades makamaka sostredotocheny kuti akonze matenda zinachititsa kuti zikamera wa chikhalidwe pathological. Poyamba Choncho, ankachitira matenda a mtima, myocarditis ndi matenda ena. Komanso, zinthu sanali aakulu (chosakwanira anatseka misewu) Mwina kuchitikira mankhwala, amene amagwiritsa glycosides makamaka mtima.

Pamene okwana anatseka misewu ya njira yodalirika, zikubweretsa kubwezeretsedwa kwa mlingo yachibadwa mtima ndi opaleshoni kuti likhazikike ndi pacemaker (pacemaker). Tikumbukenso kuti likhale zoterozo opareshoni lero kwambiri bwino chikhalidwe cha odwala ndi kutalikitsa moyo wawo.

Choncho, arrhythmia ndi mtima chipika pali tsopano zachilendo ndipo amafuna mabuku ndi mokwanira chithandizo, chifukwa kuphwanya osati impairs thanzi la munthu, koma loopsa kwambiri moyo wake.