Wing enezinto: isakhiwo kanye nezici

I morphology we valve inhliziyo uye eside yabakhanga abacwaningi. Ukwephula umsebenzi architectonic noma iyiphi ingxenye apharathasi valve kuholela ukuphazamiseka zakryvatelnoy umphini umsebenzi futhi umsebenzi ukudonsa inhliziyo iyonke.

Izimiso jikelele isakhiwo septa atrioventricular

Wing enezinto zimumethe fibrous indandatho ichopho kuzithinta nemisipha papillary.

Valve indandatho kukhona ifomu fibrous ne iinthombe imisipha amaseli, okuyinto ngaphakathi camera endocardium. valve enezinto imbozwe endothelium, futhi akheke egqinsiwe.

Ngo isiqondiso esivela atrial kuya ventricular ebusweni ungqimba 3 sikhona:

1. Sithambile.
2. Fibrotic.
3. Ventricular.

Ngesisekelo ibhande lendwangu ipuleti fibrous elivela fibrosus annulus.

Wing enezinto, noma kunalokho ungqimba yabo sithambile, ewumngcingo, has a lot of imicu enwebekayo yezicubu ku ezicutshini, okuyinto ikakhulu sigxile onqenqemeni mahhala ichopho. Imicu yotshani kuqhathaniswa enkulu nokunwebeka e amacembe of butterfly valve, tricuspid kuka.

Le micu ungqimba ventricular collagen yibona.

ebusweni valve

Wing enezinto ube evele ezimbili - atrial futhi ventricular, futhi ebukhali izinsiko zombili - fixed kanye khulula.

Endaweni atrioventricular valve ezinhliziyweni zabantu ezingaphezu kuka endaweni valve kwezitho zesifazane. Tricuspid umphini bivalve endaweni enkulu cishe 25%.

imisipha Papillary nge umsipha ukulele yakha inhliziyo apharathasi subvalvular. Chord enamathiselwe amaphiko. I ubude kanye ukushuba kubo ifinyelela esiphezulu yayo eminyakeni 35-40.

butterfly valve

Inombolo amapheshana (amacembe) has kusukela 2 kuya 6. Umsuka:

• phambi, ngokuvamile kuphela, ngezinye izikhathi ihlukaniswe yaba izingxenye ezimbili;
• labaqaphi elingemuva.

Bahlale bekulungele ezinkulu.

Ngaphambili ichopho ijamo elingunxantathu, unamathele elingenhla nantathu medial, posterior ukuze esele wathi valve, it has a ukuma elingunxande. Bobabili babe esishintshashintshayo bushelelezi basal apical anolaka ahlukaniswe Crest.

Ngaphambili Lobe we valve mitral ngokuya obusebenzayo kuyinto eyisisekelo, kuba mobile, ngesikhathi systole, lokulandisa umthwalo oyinhloko, njengoba uthola ngobuningi yokucindezela igazi ukhiphe i-ventricle.

Engemuva abasahilelekile e sokuvalwa valve. Ukubaluleka obusebenzayo libe lincane.
Flap valve ukulele benzelwe kuya imisipha papillary.

kuzithinta umsipha:

• nokwelukiweyo ngohlangothi ventricular of valve ezindaweni ezinzima, ukuphuma kuwo ngamunye ahlukaniselwe ohlabayo imicu emithathu.

Ukuze phambili Lobe, okuyinto linanomgudu ichopho 2, yimisipha papillary enamathiselwe 5-10 kuzithinta, kuya ezingemuva - 10-20, 20-30 Imicu yotshani ngezinye izikhathi umsipha.

Kwesobunxele ventricular atrio-imbobo ngesikhathi fibrosus annulus has simise kancane okusaqanda.

3 blade damper

Ngokuphathelene inani amaphiko (iyizingxenye) kanye nosayizi zabo kule isakhiwo, njengoba kungekho ukuvumelana. Kuthathwa ngokuthi yakhiwa 3 linani lelehlukile enezinto futhi izingxenye liletha valve. Njengoba bekhula, inani iyizingxenye luyanda ngenxa wokuqhekeka amapuleti main ezincane.

I enezinto kwelungelo atrio-ventricular valve kukhona endocardium eziphindaphindiwe ukuthi olayini ATRIUM kwesokudla futhi ventricle.

I-ventricle yangakwesokudla, ngokulandelana ikwazi ukubhakuzisa 3 ngokuvamile sineqembu ezintathu imisipha papillary. Bavela kusukela i-ventricle yangakwesokudla (Front - the septal enamandla kakhulu, bese emuva). Inani le misipha, ubukhulu kanye ukuma akuzona nabantu abafanayo. Ngamunye papillary imisipha kuzithinta ithumela 2-4, okuyinto, amagatsha, exhunywe ebusweni phansi futhi emaphethelweni amapheshana valve. enezinto ezincane Lesisemkhatsini enamathiselwe odongeni ventricular.

ucwaningo Inhliziyo umphini siyisisekelo ayisisekelo.

Eminyakeni yokugcina hlandla imibuzo liningi igazi valve futhi ontogeny yabo.

Ngakho, kulesi sihloko umbuzo mayelana isakhiwo valve inhliziyo, kuhlanganise bi- futhi tri. Lolu lwazi kuyoba usizo abafundi ezikhungweni zezempilo, kanye labo kuphela ufisa ukwenza kule okukhethekile. Ngaphezu kwalokho, abafundi abafunda biology kanye anatomy, ilwazi ngalokho iphiko we valve inhliziyo, uyophinde ethakazelisa kakhulu.