Isebenza kanjani i-pacemaker?
Context:Ngokuvamile ama-pacemaker anamuhla enza izinto eziningi. Uhlobo oluyisisekelo kakhulu lubheka isigqi somzimba senhliziyo. Lapho ucingo lwe-pacemaker noma "umthofu" ungasiboni isenzo sikagesi senhliziyo ekamelweni <unk> i-atrium noma i-ventricle <unk> ngaphakathi kwesikhathi esivamile sokushaya kwesigqi <unk> ngokuvamile umzuzwana owodwa <unk> kuzovusa noma i-atrium noma i-ventricle nge-pulse emfushane ephansi. Uma ibona umsebenzi kagesi, ngeke isishukumise. Lo msebenzi wokuzwa nokuvuselela uyaqhubeka ngesigqi ngesigqi futhi ubizwa ngokuthi "ukusheshisa okufunwayo". Uma kwenzeka kunedivayisi enamakamelo amabili, lapho amakamelo aphezulu esebenza ngokuzenzekelayo noma ngokuvuselelwa, idivayisi iqala ukubala emuva ukuze iqinisekise ukuthi esikhathini esamukelekayo <unk> nesingahleliwe <unk>, kunokusebenza kwe-ventricle, ngaphandle kwalokho kuzophinde kukhishwe umfutho.
Ama-pacemaker noma ama-pacemaker enhliziyo ngokuvamile abhekisela kuma-pacemaker enhliziyo enziwe umuntu, njengoba umzimba wethu unesiqinisi senhliziyo semvelo.  Ama-pacemaker enhliziyo enziwe umuntu asebenza ngokuthola izimpawu zikagesi ngokusebenzisa imicu eqondisayo enamathiselwe ngaphakathi kwezindonga zenhliziyo, ngokuvamile ema-atrium, futhi, uma ingekho isignali kagesi, ikhiqiza eyodwa yokuvuselela indawo yenhliziyo oyifunayo, kungaba i-atrium noma i-ventricle.