Cov kev cog lus no xav tau lub zog los ntawm kev ua pa thiab qee qhov no tso tawm raws li cua sov. Cov hlab ntsha, uas ua rau cov hlab ntsha ntawm daim tawv nqaij, ua kom nruj - lawv constrict - uas tso cai rau cov ntshav tsawg dua los ntawm daim tawv nqaij thiab txuag lub cev kub.
Puas kub dilate lossis constrict cov hlab ntsha?
Kub ua rau cov hlab ntsha tawg (qhib dav) uas ua rau cov ntshav ntau ntxiv rau hauv cheeb tsam, hais tias Dr. Nws kuj muaj cov nyhuv soothing ncaj qha thiab pab txo qhov mob thiab spasm.
tshav kub cuam tshuam cov hlab ntsha li cas?
Raws li tej yam kub, ntsuas kub hauv koj lub cev qhia cov hlab ntsha hauv daim tawv nqaij kom so thiab txais cov ntshav ntau dua. Cov ntshav peripheral no ntws radiates tshav kub rau cov tawv nqaij txias, uas dhau mus rau saum huab cua.
Puas yog cua sov txo cov hlab ntsha?
Ice constricts, los yog nqaim, hlab ntsha. Constricting cov hlab ntsha inhibits lub cev los ntawm kev tso cai o nyob rau hauv qhov chaw txias. Kub dilates, los yog nthuav cov hlab ntsha, cia ntau qhov mob ntws mus rau qhov chaw raug mob lossis mob.
Yuav ua li cas thaum cov hlab ntsha txhaws?
Thaum cov hlab ntsha constrict, ntshav ntws qeeb lossis thaiv. Vasoconstriction tej zaum yuav me ntsis los yog hnyav. Tej zaum nws yuav tshwm sim los ntawm kab mob, tshuaj, lossis kev puas siab puas ntsws.
