Basa remwoyo ndekuputira ropa rinoshambidza nhengo dzose dzomuviri. Ropa rinotakura oksijeni nemirivo inokosha kumisumbu uye inobvisa zvinodhaka. Kana kukanganisa kwemoyo kuchivhiringidzwa, nhengo dzomuviri dzinotanga kukundikana nekukurumidza zvikuru. Saka upenyu pachahwo hunoenderana nekubudirira, kupfuurira kushanda kwemoyo.
Mwoyo inhengo yakasuruvara inenge yakaenzana nehombodo yako. Sezvo mwoyo wemisumbu inobvumirana kana kuti inomesa, inoita kuti ropa risvike mumusasa. Makamuri emwoyo nemagetsi zvinorongwa kutungamira kubuda kweropa apo mwoyo unorova.
Makamuri Emoyo uye Mavheji
Mwoyo une makamuri mana. Izvo zvinyorwa zviviri (kurudyi uye kuruboshwe) zvivako zvemasumbu zvinokonzera ropa kubva mumoyo. Izvo ventricle yakarurama inoputira ropa kumapapu, uye kuruboshwe kuruboshwe ropa kune dzimwe nhengo dzose.
Iriya mairi maviri (kurudyi uye kuruboshwe) anobata ropa rinodzokera kumwoyo, uye panguva yakakodzera iyo isina chinhu mukati mezvakarurama uye kuruboshwe.
Mwoyo mavhavha mana (tricuspid, pulmonary, mitral uye aortic) chengetedza ropa richifamba nenzira yakarurama kuburikidza nemoyo.
Zvinobatsira kufungidzira mwoyo unoshanda semapombi maviri akaparadzana, kushanda mune zvakatevedzana; mwoyo wepombi yakachena, uye pombi yemwoyo yakasara.
Right Heart Pump
Pombi yemwoyo yakarurama inosanganisira atrium yakanaka, tricuspid valve, right ventricle, pulmonic valve, uye pulmonary artery. Basa rayo nderekuita kuti "kushandiswa" kweropa kuwedzerwa zvakare ne oksijeni. Oxygen-ropa risina kudzokera kumwoyo kubva mumatumbu emuviri anopinda pakakodzera. Kana chikwangwani cheAria, chirungu chinonzi tricuspid chinotanga uye chinobvumira ropa kuti rifurwe kubva paanriamu yakarurama kusvika kune ventricle yakarurama.
Zvadaro, kana bvumirano rakarurama rinovhara, vhidhiyo inovhara (kudzivirira ropa kubva pakushambidza kumashure kuenda kune right atrium), uye vhuvha yepulmonic inotanga - saka ropa rinodonhedzwa kubva mubhokisi rakarurama uye kuenda kumapurmonary arteri nemapapu, apo iyo inozadzwa ne oksijeni.
The Left Heart Pump
Pombi yemoyo yakasara inoumbwa neatrium yakasara, mitral valve, kuruboshwe rwemhepo inonzi ventricle, aortic valve, uye aorta. Basa rayo nderokuputira ropa rega-oxygen kumatumbu emuviri. Ropa kudzokera kumwoyo kubva pamapapu rinopinda mucheche wekurima. Apo chikwangwani cheatriya, mitral valve inovhura uye inobvumira ropa kupinda mucheririri wekupedzisira. Apo kuruboshwe kuruboshwe zvibvumirano kwechinguva gare gare, mitral valve inovhara uye vhuti re aortic rinotanga. Ropa rinodzingwa kunze kwema ventricle kuruboshwe, parutivi rwevharuko ye aortic, uye kunze kwomuviri.
- Verenga nezve mitral stenosis.
- Verenga nezve mitral regurgitation.
- Verenga pamusoro peaortic stenosis.
- Verenga pamusoro peaortic regurgitation.
Chikoro cheCardiac
Iwe unogona kunzwa nezvechirevo chinonzi chirwere chemoyo. Zvichida, "chirwere chemoyo" ndiyo nzira iyo vanachiremba vane kuparadzanisa basa remoyo muzvikamu zviviri - diastolic phase uye systolic phase.
Muchikamu che diastolic, maviri emhepo aya anonoka uye ari kuzadzwa neropa kubva kuAria. Mu systolic phase, maviri emagetsi aya anobvumirana.
Iri izwi rinobatsira nenzira dzakasiyana-siyana. Semuenzaniso, patinoyera kuwedzerwa kweropa, isu tiri kuenzanisa kushungurudzika mumatrichi mukati mezvikamu zviviri zvechimiro chemoyo - systolic uye diastolic. Saka, kuwedzera kweropa kunozivikanwa senhamba mbiri, dzakadai sa 120/80. Pano, systolic yeropa (kushandiswa kwemhepo panguva iyo mhepo inenge ichirova) iine 120 mmHg, uye diastolic inomanikidzwa (inomanikidzwa panguva yekuzorora kwemhepo) iri 80 mmHg.
Uyewo, apo mapadiologist anotaura nezvekushaya simba kwemoyo, vanowanzotaura kuti chirwere chemwoyo chinokanganisa zvakanyanya s systolic chikamu chebasa remwoyo (sezvinoitwa dildiomyopathy ), kana chikamu che diastolic (sechirwere chinonzi diastolic ). Kurapa kwakakodzera kunoda kuita izvi zvakasiyana.
Verengai nezvemaitiro emakiratiyuta akazara.
Sources:
Otto CM. Textbook of Clinical Echocardiography, 4th edition, Saunders Elsevier, 2009.