![Cov photoreceptors ua dab tsi? Cov photoreceptors ua dab tsi?](https://i.answers-medical.com/preview/medical-health/14148920-what-do-photoreceptors-do-j.webp)
Video: Cov photoreceptors ua dab tsi?
![Video: Cov photoreceptors ua dab tsi? Video: Cov photoreceptors ua dab tsi?](https://i.ytimg.com/vi/UBzLEkI_zxI/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
A photoreceptor cell yog ib hom tshwj xeeb ntawm cov cell neuroepithelial pom hauv cov retina uas muaj peev xwm pom qhov muag pom duab. Qhov tseem ceeb lom neeg ntawm photoreceptors yog tias lawv hloov lub teeb (pom hluav taws xob hluav taws xob) mus rau hauv cov cim uas tuaj yeem txhawb cov txheej txheem lom neeg.
Ib qho yooj yim, yuav ua li cas photoreceptors ua haujlwm?
Photoreceptors muaj cov tshuaj uas hloov thaum lawv raug teeb. Qhov no ua rau muaj hluav taws xob teeb liab, uas yog tom qab ntawd xa mus rau lub hlwb nrog cov paj hlwb. Ntau hom photoreceptor tso cai rau peb pom ntau yam ntawm lub teeb: los ntawm lub hnub qub mus rau lub hnub ci, thiab tag nrho cov xim ntawm zaj sawv.
Tsis tas li ntawd, cov photoreceptors ntawm lub qhov muag nyob qhov twg? Photoreceptors : Lub teeb pom lub paj hlwb (pas nrig thiab lub khob hliav qab) nyob hauv retina.
Ua qhov no hauv kev txiav txim siab, ob hom photoreceptor hlwb hauv qhov muag yog dab tsi?
Cov tshwj xeeb no hlwb hu ua photoreceptors . Muaj 2 hom photoreceptors hauv lub qhov muag : rods thiab cones. Cov pas nrig yog qhov nkag siab tshaj plaws rau lub teeb thiab qhov tsaus ntuj hloov pauv, cov duab thiab txav thiab tsuas muaj ib qho xwb yam ntawm lub teeb-sensitive pigment. Cov pas nrig tsis zoo rau qhov pom xim.
Cones ua dab tsi hauv qhov muag?
Lub khob hliav qab cell, lub Lub khob hliav qab , yog cov hlwb photoreceptor nyob rau hauv cov retinas ntawm vertebrate qhov muag (xws li tib neeg qhov muag ). Lawv teb txawv rau lub teeb ntawm qhov sib txawv ntawm qhov sib txawv, thiab yog li lub luag haujlwm rau lub zeem muag xim thiab ua haujlwm zoo tshaj plaws hauv lub teeb pom kev zoo, tsis zoo li cov qws hlwb, uas ua haujlwm zoo dua hauv lub teeb ci.
Pom zoo:
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