You explained in 11 minutes what my Professor failed to explain in a 2 hour lecture! Thank you so much! Kudos to you!

the sad thing is that andrey kopot dosent earn from youtube no monetisation is activated by this man ,this is the reason i feel bad for this legend or its just that money dosent matter , perfection do.. thanks andrey sir love from india

I don't normally comment on videos but its such a shame that you don't have more viewers, your videos are amazing, very clear and throughout. you deserve so much more. Thank you so very much and keep up the good work!

Why can't my teachers in med school be like you?

You truly are the best. You're really helping me visualize everything. A lot of professors just want to sound like a boring text book, however you really explain it so well.

finally, a video that explains this thoroughly. your a med school saviour sir

We know teachers like you are less appreciated but y'all deserve everything good in this world :)

7:48 Most videos I've seen don't really describe how this "pushing process" happens so it's nice to see that someone is willing to explain it quite thoroughly.

Dude, you're just brilliant! I can't thank you enough. You save me each and every time exams come up!

Just one minor correction. In the video you had mentioned that the endoderm is derived from the hypoblast. Per the book "The Developing Human" on Clinical Key, it states that the hypoblast only gives rise to the extra-embryonic mesoderm (in the second week). All 3 of the layers (ecto/meso/endo-derms) are derived from the epiblast cells differentiating as such. Good lecture though, just trying to keep the more medically oriented folks on track. Cheers.

this is exceptional material and if not the best video to actually understand gastrulation

actually i think that only epiblast cells give rise to all the three layers including endoderm

OMG! i dont know what to say! that was totally perfect! thanks alot doctor..that's why i wanna travel abroad to complete my studies there where doctors like you teach us !

Never have i ever understood something so clearly! You're truly talented, thank you so much :D

Thank you! This series of embryology actually help me a lot!

You're videos are amazing. You do such a fabulous job making these concepts simple and clear. I really enjoy the way you concisely explain everything in such a pleasant way! (Also like your slight accent...where are you from? I can't figure it out). Thanks a million!

I'm a french student and I thank you for all these videos very simple to understand ! Keep going !

Proud you are da best lecturer i have ever seen

oh i just want to thank this teacher too much cause i never understand this before. Your teaching is amazing.

your explanation and drawings are WONDERFUL! Thank you for your time and effort!

Andrey, you are my inspiration when times are tough. I have survived undergrad with you and am happy to say will be surviving my first year of med school with you! Thank you so much for your service to science!

Another ‘simple’ explanation. Thank you!

This is a life saver during SWOTVAC, thankyou!

Thank you very much, the diagrams very super helpful! I never quite understood how invagination worked until now, this was way clearer than any video explaining gastrulation.

Thumbs up your brief and straight forward. I pray my lecturer be like you.

Your videos are really amazing and encourages me to love biological science. Keep up the good work sir

Thanks God for creating languages to gather people together. Ana thanks God again that I could find you . My heart is beating when I watch your teaching

Thank you so much! Now it is clear for me and I think everybody who has watched your video. Thanks again!

From undergraduate through medical school, you are my savior

OMG it’s smth unreal!!! You are the best teacher. Thank You soooooo much

Loved this video..... In fact made me love the process of gastrulation

You're a great teacher, even I'm speak spanish, I understood very well. Thank you :)

thank you for the wonderful lecture. it has really helped me

I appreciate your clarity so much.

Amazing video! But I'd like to suggest a correction: To my knowledge, the trophoblasts differentiate into cytotrophoblasts and syncytiotrophoblasts while the embryoblasts differentiate into epiblasts and hypoblasts So in short: The structure of the blastocyst: 1. Outer cells: trophoblasts. 2. Inner cells: embryoblasts. Trophoblast mediates the implantation, and will develop into placenta. Embryoblast gives the body of the embryo

this is amazing! I have some questions though... but it's perfect.

So good!! You are saving my life!! Can't thank you enough:)

This video has explained almost everything that was covered in my whole-week lecture. Thank you!!!

You rock ! Always so clear and schematic, thank you very much

Wonderful! I finally got it, thanks to you! You're so god as a teacher thanks

That was a really good video and helped me not only learn but UNDERSTAND gastrulation a whole lot more. :) Cheers AK Lecturer!

damn.....I was in need of that style from a very long time....Thank God I found you......M from pakistan doing fsc from federal board....and it seems as u are teaching my books.....Thanku Thanku

7:48 the best part. This was all I wanted.

Ive read in some texts that its the differentiation of the epiblast cells that give rise to the 3 germ layers, and that the hypoblast is primarily responsible for creating a lining that forms the yolk sac, but in the video you mention that the hypoblast gives rise to the endoderm as well. Is there any to help clarify this for me a little? It also states that the endodermal cells from the epiblast essentially replace some of the cells in the hypoblast layer.

Thank you dear, may Allah grant you all the best; you really helped me to understand this complicated process. Zabihullah from Afghanistan.

ohhhh my goshhh! im currently studying for the mcat and i literally watched 3 full videos on gastrulation and each video confused me more, your video was my 4th and i understood every single thing so easily! you are amazingggg thank you!!

Thank you so much :) I love watching your videos to prepare for my bio tests

Wow!! This lecture real help me understand gastrulation better. All the stars sir💯

thank you thank you thank you please dont stop teaching us !

keep doing this great work ,it`s really helping my younger brother,GOD BLESS u

Such a fantastic lecture! Thank you very much :D

These videos are unbelievable.

finally, it makes sense. Thank You.

Your video is extremely helpful! I'm so appreciated about that, because I already search for a lot of videos but still can't understand. Thank you~

Thank you! This is really good!

Splendid! Splendid! Greetings from the Netherlands, Frank

You are amazing! Thank you

As always, amazing lecturer.

Good job!! Explanation was awesome!

ive been a continous viewer of ur videos and trust me they have been teaching and enlighting me way better than books ur sooo damn god and i owe u alot cuz ur helping me become a doctor.thnx for helping me realising my dream may god bless ya n loads of success to u

thankyou , this explanation is so clear rather than what was given in my textbook.

Omg you've taught me more in 11mins than 3hours at college. Thank you so much

an amazing summary of gastrulation , Thanks a lot

Wow. Just wow. Thank you!

I watched this while preparing for my UE,it helped me a lot,I understood a lot just within 11minutes...Thanks so much brother

love all your videos!

You have a very professional skills in teaching , thanks a lot this help me a lot

The best video out there describing gastrulation and the germ levels. Super helpful for studying.

I'd like it again if I could.

Sir, you are AMAZING ! Massive respect

OMG!! I just had to stop watching the video to comment and thank you for the amazing video!!

This was a bit confusing because it looks like the epiblasts also form the extraembryonic mesoderm, but it's actually limited to the intraembryonic mesoderm while the hypoblasts already formed the extraembryonic mesoderm before the primitive streak develops.

You are a soul saver.

Thank you. Such a clear communicator.

awesome . love ur way in explation

Extremely helpful, thanks!

I wish if my Doctors make the information as simple as you do 😢💔they take +50min just to say the same thing Keep up the good work 💪🏻📔 Best wishes from Saudi Arabia 🇸🇦 ✨

Wonderfully explained. Great fan....!!!

your videos are a great help for me... thank you!!!!

this was really helpful in clearing my doubts which te books coudnt solve......thank u soo much u r the best.....

you are such a great teacher, Godbless you

Thank you so much sir....you are one of the best lectures ever seen

god bless you, you are changing my life

Thank u sir ...I clear most of my doubts by watching ur videos ....A huge respect to u sir .☺☺☺

Большое спасибо парень.Если бы ты вел лекции в моем универе гистология стала бы моим любимым предметом.

well explained...very helpful to undrstnd the concept..thnx 4 uploading....

way of teaching and the process of explaination is awsome....

5:38 correction, all 3 germ layers ( intraembryonic Endo Meso Ectoderm ) are derived from epiblast cell layer. None from hypoblast cells.

Im so in love with this guy

wow YOU are amazingly good!!!

thank you for these amazing videos. please keep uploadin videos forever

Sir, Thank you very much. i dont know why your videos have less viewer. I am your fan Sir........ thank you for making our studies simple and easy .....

keep going.. you are amazing ! thank you

Very good video! But I learned two things different: 1. The Epiblast forms all three germ-layers 2. The extraembrionic Mesoderm that goes around the chorionic cavity is formed by the Hypoblast in an earlier stage

This is awesome, thank so much

The first germ layer to form is the endoderm, but it's formed from the epiblast by migration from the primitive streak towards the hypoblast; only afterwards the mesoderm. Hypoblast only gives rise to extraembryonic endoderm

Your just amazing, thanks a lot !!

Thank you for your wonderful videos. I will use these in my embryology class. :)

i feel like this needs to be clarified : during invagination the primitive streak is formed and then the primitive node. during this time the epiblast cells migrate cranially(towards head) and as this occurs the epiblast cells detach from the epiblast layer slip under it and into the interior of the embryo. from this point the first of these cells to invaginate invade the hypoblast layer and displace that layer of cells on top with the definitve ectoderm cell layer forming the ectoderm , the cells that remain inbetween become the mesoderm and the remainder of the epiblast cells become the endoderm. so technically the hypoblast does not become the ectoderm. hope this helps

suberb sir ...u explained it way to clear....👍👍👍 dont know why our college teachers dont hv such traits of lectures..very welll sir👍