Enezinto Iphiko: isakhiwo neempawu

Le morphology ye kwemithambo intliziyo iye utsale elide ingqalelo abaphandi. Ukophulwa yomsebenzi architectonic okanye nayiphi na inxalenye izixhobo vana kukhokelela nokuphazanyiswa zakryvatelnoy umsebenzi nokufakelwa umsebenzi lokumpompa yentliziyo xa iyonke.

Imigaqo jikelele ubume septa atrioventricular

enezinto Wing ziquka ezinezikhondo ring caba Isingqi kunye nezihlunu papillary.

ring vana zezi fom ezinezikhondo ngokuqukwa iiseli izihlunu, ezo wawutyabeka ngaphakathi endocardium. enezinto vana lulungiselelwe kolu endothelium, yaye isakhiwo sekhombuya.

In kulwalathiso atrial ukuya umaleko kumphezulu ventricular 3 sikhona:

1. Nomsi-.
2. Fibrotic.
3. Ventricular.

Isiseko kwipleyiti ezinezikhondo nombhinqo, ophuma fibrosus annulus.

enezinto iphiko, okanye mandithi umaleko zabo nomsi-, emxinwa, kukho ezininzi imicu elastic kwi zomzimba nokuqina, nto leyo belujolise kakhulu emphethweni simahla caba. imicu elastic noko esingakumbi esiqwene ibhabhathane vana, tricuspid ngaphezu.

Imicu Umaleko ventricular collagen ngabona.

surface valve

enezinto Iphiko iindawo ezimbini - atrial kunye ventricular, kwaye lalintlangothi mbini - esisigxina yaye simahla.

Ummandla atrioventricular mbobo iintliziyo zabantu ngaphezu indawo kwemithambo kwi amalungu ababhinqileyo. indawo namaqokobhe ivalve Tricuspid mkhulu kangangama-25%.

imisipha Papillary kunye taxi imicu zenza intliziyo izixhobo subvalvular. Isingqi iqhotyoshelwe kwamaphiko. Ubude kunye ubukhulu kubo ifikelela iphezulu kwiminyaka 35-40.

butterfly valve

Inani amaphetshana (ezinamagqabi) ukususela-2 ukuya ku-6 Root:

• ngaphambili, kaninzi yedwa, maxa wambi yahlulwe iinxalenye ezimbini;
• diff.

Bahlale enkulu.

Caba phambi shape olunxantathu, iqhotyoshelwe kule eliphezulu-wesithathu medial, ngomva ukuya okuseleyo wathi vana, ukuba sele imilo yoxande. Zombini i egudileyo carcinomas apical iindawo ezimagqagala ezahlulwe sisithuba umqhele.

Nomhlehlo phambi kwe ivalve mitral ngendlela esebenza ngayo ezingundoqo, oko yeselula ngakumbi, ngexesha systole, olubalelwa kuba umthwalo omkhulu, njengoko sibona ukuba isambuku uxinzelelo lwegazi betekisi yi ventricle.

Yangasemva elide inxaxheba kukuvalwa vana. Ukubaluleka esebenzayo ube mncinci.
Caba valve taxi ayinakutshintshwa kwizihlunu papillary.

ngentambo imicu:

• ephothiweyo ngecala ventricular ye ivalve kwiindawo ezirhabaxa, ngamnye bahlukana imityana amathathu aselula.

Ukuze nomhlehlo ngaphambili, nto leyo eye iphaphazelise vana 2, yi izihlunu papillary 5-10 imisindo eqhotyoshelweyo, ngasemva - 10-20, 20-30 imicu maxa wambi imicu.

Ekhohlo ventricular atrio-imbobo fibrosus annulus unalo seqanda kancinane.

3 blade umatshini

Ngokumalunga inani amaphiko (isithinzi) kunye nobungakanani zabo kule isakhiwo, njengoko kungekho kuvumelana. Kucingelwa ukuba le nto ndiyibhalayo 3 inani ezahlukeneyo enezinto kunye namacandelo eliphakathi mbobo. Nge ubudala, inani isithinzi yaligqiba ngenxa ukuqhekeka amacwecwe yoqobo amancinane.

Le enezinto kwemithambo atrio-ventricular lasekunene endocardium duplicate ukuba imigca intendelezo ekunene kwaye ventricle.

Le ventricle ekunene, ngokulandelelana inokuwaphaphazelisa 3 lidla amaqela amathathu izihlunu papillary. Bona sivela ventricle ekunene (Front - le septal zinamandla, waza ke umva). Inani le izihlunu, ubukhulu kunye nokwakheka hayi abantu efanayo. Isingqi nganye umsipha papillary uthumela 2-4, leyo, eyayizalwa, ziqhotyoshelwe kumphezulu ezantsi kungqameko amaphetshana vana. enezinto eziphakathi Small eziqhotyoshelwe eludongeni ventricular.

uphando yentliziyo nokufakelwa yeyona isisiseko esisiseko.

Le minyaka yokugqibela ekucaciseni kwemithambo supply imibuzo igazi kunye ontogeny labo.

Ngenxa yoko, kweli nqaku umbuzo malunga isakhiwo kwemithambo yenhliziyo, kuquka in- kunye tri. Olu lwazi luza kuba luncedo kubafundi zamaziko yezonyango, ngokunjalo nabo onqwenela kuphela ukuba asebenze kule elithile. Ngaphezu koko, abafundi bafunda eziphilayo kunye nokwakheka ulwazi malunga iphiko kwemithambo yenhliziyo, naye uya kuba umdla kakhulu.