Qhov kev pom zoo yog qhov pom zoo: Ncig teebuas tau qhia hauv ib lub qhov muag ua rau cov menyuam kawm ntawv constriction ntawm ob lub qhov muag.
Dab tsi ua rau pom kev pom lub teeb pom kev zoo?
Qhov kev pom zoo ntawm lub teeb pom kev tshwm sim vim ob lub qhov muag thiab cov hlab ntsha nqa cov fibers los ntawm ob lub qhov muag. Txoj kev efferent (motor) pupillary pathway muaj ob qho tib si parasympathetic thiab sympathetic paj hlwb ua.
Cov lus teb ib txwm rau menyuam yaus rau lub teeb yog dab tsi?
Cov menyuam kawm ntawv ib txwm muaj nyob rau hauv cov neeg laus nws txawv ntawm 2 mus rau 4 mm inch nyob rau hauv lub teeb ci rau 4 mus rau 8 mm nyob rau hauv qhov tsaus ntuj. Cov menyuam kawm ntawv feem ntau sib npaug ntawm qhov loj. Lawv constrict to illumination (direct response) and to illumination of the opposite eye (kev pom zoo teb). Cov tub kawm ntawv nthuav dav hauv qhov tsaus ntuj.
Puas yog hippus ib txwm muaj?
Pupillary hippus, tseem hu ua pupillary athetosis, yog spasmodic, rhythmic, tab sis tsis tu ncua dilating thiab cog lus ntawm cov leeg nqaij ntawm cov leeg sphincter thiab dilator. … Nws feem ntau yog qhov qub, txawm li cas los xij pathological hippus tuaj yeem tshwm sim.
Thaum lub teeb pom kev zoo yog qhov zoo?
Thaum lub teeb ci rau hauv ib lub qhov muag xwb tsis yog lwm qhov, nws yog ib qho zoo rau ob tug menyuam kawm ntawv ib txhij. Cov ntsiab lus ncaj qha thiab kev pom zoo yog hais txog sab uas lub teeb pom kev los ntawm, txheeb ze rau sab ntawm cov tub ntxhais kawm reacting.
