Isixhobo soLawulo lweNkuthazo yeNkuthazo sisixhobo solawulo lwenkuthazo, esenziwe ngokusekelwe kuyilo olusemgangathweni wesakhiwo sesizwe. Esi sixhobo siquka itanki yoxinzelelo lwe-diaphragm, ipompo yenkuthazo, ibhokisi yokulawula yombane, izixhobo zokufaka izixhobo kunye nezixhobo zombhobho kunye nezinye izinto, ezifanelekileyo kwiimfuno zesakhiwo esinemigangatho emininzi kunye nezakhiwo eziphakamileyo kunye neemfuno zenkuthazo kwiinkqubo zokubonelela ngamanzi okucima umlilo kunye neenkqubo zokucima umlilo ezizenzekelayo kunye nezinye iinkqubo zokulwa nomlilo kunye nokubonelela ngamanzi.