Special Senses | Photoreceptors | Rods and Cones

Official Ninja Nerd Website: ninjanerd.org
Ninja Nerds!
During this lecture Professor Zach Murphy will be teaching you about the mechanism of photoreceptors. We go into great detail on the rods and cones, and how they respond differently to various types of light. Finally, we discuss how we adapt from a light to dark environment, to a dark to light environment, and how these photoreceptors respond. We hope you enjoy this lecture and be sure to support us below!
Join this channel to get access to perks:
/ @ninjanerdofficial
APPAREL |
www.amazon.com/s?k=ninja+nerd...
DONATE
PATREON | / ninjanerdscience
PAYPAL | www.paypal.com/paypalme/ninja...
SOCIAL MEDIA
FACEBOOK | / ninjanerdlectures
INSTAGRAM | / ninjanerdlectures
TWITTER | / ninjanerdsci
@NinjaNerdSci
DISCORD | / discord
#ninjanerd #Photoreceptors #EENT

[@himanshuambilkar4160]

Photoreceptors-
Rods-
Rhodopsin
Retinal sensitivity
Scotopic vision.
Cones-
Photospin
Visual acuity
Colour Vision.
Dark to light adaptation-
Pupil constrict
Bleaching pigment
Rods turns off
Retinal sensitivity decrease
Cones turns on
Colour Vision
5-10 minutes.
Light to dark adaptation-
Pupil dilation
Rhodopsin start accumulating
Retinal sensitivity increase
Rods turn on
Low wavelength not activate cones
20-30 minutes.
Colour blindness
Nyctalopia
Night blindnesses
Retinitis pigmentosum.
Thank you sir

[@donadona5698]

👍

[@felixd9849]

'Low wavelength not activate cones', this statment is false. In the Video he corrects himself by saying the ligtht low intensity diactivates the cones. The rods have a much higher light sesitivity but the blue cones have a Adsorption Maxima at 420nm while the Rhodopsin is at 500nm. In Average while the Switching from Photopic to scotopic vision the spectral sensitivity shifts fom green to bluegreen also called Purkinje-effect/shift. So blue things appears to be brighter than red stuff.

[@Light-qn4zh]

Really I’m so happy because we live in same time ♥️

[@noraelmetwally8683]

This channel fell from heaven 💙💙

[@AstridDarinka]

Now these are the type of people that are meant to do this job!! Thank you so much, taught me so much more than my university professor ❤️

[@bushraaqeel5664]

You are my real Professor!!!for all of my med school.i m glad i found this channel in my first year ❤

[@jennafairhaven9084]

Wish I had found you at the beginning of this semester.

[@kumargauravsingh6683]

What would I have done without you man ?
You're simply awesome.🙏

[@johnnywalkervip1]

Wow thank you so much, this video helped me get a better idea what my professor was explaining in class. ✔✔👍

[@albeezhuang5]

I love it. Excellent drawing and explanation. It draws all the points together that helps me understand the whole process. Very good job!

[@kavitakar719]

Excellent. Your grasp on the subject and teaching is just fab.

[@tiffanymyat6320]

Thank you very much!!!!! It is truly amazing that you can condense all these information in this one video!

[@its.morrissey_xx1179]

Im a first year optom student and this was so helpful in prep for my exam! Thank you! My a level biology teacher reccomended your channel and its amazing I can still find videos here not only covering a level but university content too!

[@AmalieKandel]

Thank you for another amazing video breaking down these complicated things in an understandable and organized way! Love the drawings as well - very helpful :))

[@ELFCloudGamer]

I have to tell you I have spent the whole day watching your videos haha, can't believe I only discovered them today

[@user-dq9sd1wd1p]

Finally made sense of my notes my lecturer gave .This is awesome

[@hamdiscorner5286]

I never understood why pupils constrict in bright light before this video. Thanks Zack, stay blessed and continue helping doctors around the world 😍

[@abazaabdelmageid774]

You're more than perfect 👌. Thanks for your excellent and brilliant explanation 👏

[@ruthannfacey7586]

This man is amazing. Always a pleasure watching your videos !!!!!!!

[@salahaldinfarhat5691]

Thank you as always for this amazing work of art !

[@solwane]

if only i found out about this channel since year 1 med school wasted 6 years now graduated and this helps review for usmle exam, thank you brilliant doc and teacher

[@emiledyanne]

You are truly blessed! Thank you!

[@yannaaguilar7367]

U teach more than my professors do

[@hamedhosseini4938]

Thank you so much Zach.

[@mahfa7513]

Thanks for your time to make this video great

[@hiramuazzam8490]

The best lectures are of ninja nerd

[@davidaminov7930]

"Oh man you know what? spiderman movie was so great! I wanna go back in again, and watch it again" 15:48 LMAOOOOOOO #Visual_adaptation
Zach you are the B-E-S-T!

[@pillowwall2283]

FAVOURITE CHANNEL THANKYOU HOPE YOU LIVE A BEAUTIFUL LIFE 💜

[@user-cd6mc5fz2g]

stay blessed ninja nerd , love you so much and you are the best .❣

[@galbehar]

your videos are amazing! helped me understand so well thank you:)

[@Ajaybarath]

Ultimate explanation sir 🔥🔥

[@abushabbab5018]

I love this man

[@dorothybonsu8468]

BROOOOOOOOOOOO!!!!!!!!! This video was the best video in explaining this process. Thank you sooooo much for making it!!!!!!!!!!!!!

[@l.kozasdiary7958]

I agree!!

[@andisporepmathias.3717]

I love all of his Explaination.

[@medico755]

Seriously a best lecture ❤️🙏

[@yoshana2340]

Amazing and informative video

[@shreyaray5500]

You're the best teacher ever!

[@j.sbhandari8813]

15.55 the happiness I saw on your face was so touching u make me laugh and enjoy my med study tho if it's hard

[@poosmi]

you're actually clutch for this one

[@nabodimma]

THANK YOU SO MUCH!!! Thank youuuuuuu.

[@naikamal8175]

Terrific and glorious ninja

[@meerafathima4479]

superb awesome sir

[@Zdnew]

Amazing ❤ thanks a lot ! 🙌🏻🙌🏻

[@ibtihelra3515]

thank you soooooooo
much Zach

[@zanejansone-langina5943]

I have specialization exam for my PhD and I have this ticket - you saved my grade :D

[@muhammednishan4807]

Such a great lecture mahn😍

[@ashutoshjadhav7224]

u r best , thanks sir

[@nargisjumahan1137]

You are awesome Ninja Nerd

[@Emilio77able]

Amazing!

[@abdiwelimohamedali3164]

Best chenell so far

[@atiqanabilah1576]

Thank you so much!!! 😭😭

[@LauraPerez-do9mv]

Thank you!!!!!

[@aanyagupta4245]

Huge fan of ur sir😊

[@hadinoori2718]

Thank you sir such a nice clear lecture and one of my favorit lecturer love from afghanistan

[@ameenoahmad]

Awesome video

[@lisagigi2893]

Wow! you are so so great! Thanks a lot!!!

[@umarsiddiqui6488]

dude is a LIFESAVER!!!!!!

[@afnan5470]

you make everything make sense

[@sewaralqubailat1904]

You are a gift ❤️❤️❤️

[@learn4307]

Thanks sir....u r the best❤️

[@terziuterziu5964]

Amazing 🤩

[@NarpatSingh-ze2lv]

Very helpful ☺️ tysm

[@mainakbarai219]

Really helpful

[@aimenshelly2986]

Thank you so much.

[@georgejeraldbanda2101]

THANK YOU

[@a30s]

nice explanation

[@abeikukimani8565]

you're a life saver

[@MrBlazingup420]

Have you ever heard of the McCollough effect
The McCollough effect is a phenomenon of human visual perception in which colorless gratings appear colored contingent on the orientation of the gratings. It is an aftereffect requiring a period of induction to produce it

[@razansalman9215]

thank you so much you are amazing

[@ashleyd.5589]

thank you!!

[@amyleepurton]

💛 thank you

[@suhaskumar7018]

Thanks a lot ❤️

[@kmb85045]

the best teacher

[@godofallgodswithnoothernam920]

Excellent

[@louiskhoo3507]

very good video!!

[@mustafaeye7081]

Great, thanks so much

[@masikasauda7673]

Thank you sir

[@zaidkhan-yc3fd]

nice lecture 👍

[@vakskas2866]

Great baby ,, I really appreciate this hard work ...,

[@dinosus26]

Great 👍

[@Hasson-nd4xx]

thank you i am in ophthalmology residency, but no one help me to understand basic as you

[@assyfaatha665]

thank you for helping me pass the exam, sir Q_Q

[@bugzybobo341]

You are raw talent… original and good.
Thank you

[@dariocosemans8326]

Legend!

[@AkashKumar-gn6sh]

Thanks sir, sir I want study about ERG, so please suggest video..

[@prashant4702]

Thank u so much😍

[@Shazib8]

Nice!!

[@kavitachouhan4538]

Need the video on the embroyological development of human eye

[@donadona5698]

You’re unbelievable!!!

[@the_accidental_doctor]

Ohhh man you are genius ❤️

[@nara9793]

thank you! :)

[@kinleyyoezer8353]

Tysm sensei

[@jamesgordon8867]

I can't wait for the day when you have a contest for high school students and they give your whiteboard accounts accurately for scholarships.
Think what kind of physicians we would have them.

[@rimpimalakar2422]

Zack paaji tussii great ho ji .❤❤

[@charlesevelyn6563]

thank you so so so so so so so much

[@oop8599]

THANKYOU VERY MUCHIEEE

[@rashmisingh3512]

You’re so Amazinggggggggggggggg

[@tahsinhussain837]

you are the best

[@Imamanoor22]

thank you!!!!!!!!!!

[@osh7724]

best one

[@naomyrotich2840]

Wonderful....