Yuav ua li cas tus txiv neej npaj tau tshwm sim, tsis muaj sij hawm los tshem nws lub ris, thiab twb muaj ib tug qaib nyob rau hauv tag nrho. Zoo, cov hluas nkauj hluas nkauj ntawm chav kawm yog zoo nkauj, tsuas yog xws li thiab yuav tsum tau rub mus tob. Tag nrho tib yam, kev sib deev tsis tu ncua tsis txaus thiab cov tub ntxhais hluas txiav txim siab nthuav lawv lub nroog Yeiuxalees thiab muaj kev sib deev qhov quav.
Dab tsi ua haujlwm pharynx, nqos nws tag nrho cov qaib, yog tias koj shov koj cov khoom nyob rau hauv, nws yuav nqos thiab tsis hnov nws. Ua tsaug rau cov ntxhais zoo li ntawd, leej twg tuaj yeem muab txoj haujlwm sib sib zog nqus.