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!
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
its not sad cuz all he wanted to do was reacive love and provide free education, his goals acieved and is already financially stable with his doctrate profession, adds would ultimately make it more comercial
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.
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 !
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!
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
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.
That doesn't make him wrong. I've read what he's saying from many different sources. Many different texts say the same things in different ways and may not always include all details
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.
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
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
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!
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
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.
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!!
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
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 .....
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.
Epiblast diffrentiate into intraembryonic endoderm mesoderm ectoderm, these make up diff organs in our body. Meanwhile hypoblast cell layer is pushed away, replaced by incoming proliferating endorderm layer. Hypoblast will however proliferate into extraembryonic mesoderm and endoderm. These make up chorion amnion etc
But i think diagrams 1&2 should be on cleaveage when morulla actually build up a tropoblast and morulla brought them tobe 32-cells which knows as blastokist and then where diagrams 1 exist they build up inner cellmass and outercell mass (tropoblast) that devided into 2 sitotropoblast(made up placenta) and sinsitiotropoblast(invasion to endometrium) when blastokist could reach deep of endometrium inner cell mass build up into epiblast and hipoblast, the next step is actually gaatrulation (week3)
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
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 🇸🇦 ✨
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
Hi! I've discovered your lectures some hours ago and I'm really grateful for your great work! :) I'm from Spain and at this moment I'm studying for a State Exam to be teacher of Biology and Geology at Secondary School. I use Internet to recall some concepts, to illustrate my study or just to motivate myself. And well, I have to say that your videos have been very motivating! And I'm improving my English as well! Thank you so much!!!
María Lozano Roldán Hi Maria, thanks so much for sharing your story, thats awesome to hear! glad to be part of your study process! wish you the best on your upcoming exam! let me know how it goes :)
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 explained in 11 minutes what my Professor failed to explain in a 2 hour lecture! Thank you so much! Kudos to you!
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!
For sure
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
its not sad cuz all he wanted to do was reacive love and provide free education, his goals acieved and is already financially stable with his doctrate profession, adds would ultimately make it more comercial
We know teachers like you are less appreciated but y'all deserve everything good in this world :)
finally, a video that explains this thoroughly. your a med school saviour sir
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.
Why can't my teachers in med school be like you?
I know right!
Dude, I'm in highschool and they are making us learn these!!! It's torture to us.
If you are in high school then your in the wrong section. You are torturing yourself.
huh
Ege Çakıcı me too!!
Dude, you're just brilliant! I can't thank you enough. You save me each and every time exams come up!
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 !
this is exceptional material and if not the best video to actually understand gastrulation
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!
From undergraduate through medical school, you are my savior
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
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.
That doesn't make him wrong. I've read what he's saying from many different sources. Many different texts say the same things in different ways and may not always include all details
No hypoblast makes endoderm as written in many books
Thank you dear, may Allah grant you all the best; you really helped me to understand this complicated process.
Zabihullah from Afghanistan.
your explanation and drawings are WONDERFUL! Thank you for your time and effort!
I'm a french student and I thank you for all these videos very simple to understand ! Keep going !
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.
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
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.
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
ANGELOFDEATHAGK GUPTA Are tou from India?
This video has explained almost everything that was covered in my whole-week lecture. Thank you!!!
Wow!! This lecture real help me understand gastrulation better. All the stars sir💯
actually i think that only epiblast cells give rise to all the three layers including endoderm
yes, you are absolutley right. hypoblast forms extra embryonal tissue.
that's what i thought too . epiblast is the origin of the other two layers ,that's what our teacher sad .
But hypoblast forms the endoderm...
@@junakikashyap2543 Incorrect! The Hypoblast creates the yolk sac
, as the folks above said, extra-embryonal tissue
But mesodermal cell arises from hypoblast and ectoderm formation also
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!
7:48 the best part. This was all I wanted.
Thumbs up your brief and straight forward. I pray my lecturer be like you.
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
finally, it makes sense. Thank You.
Im so in love with this guy
Just dropping this for my fellow mcat friends:
Mesoderm = move-o-derm
Ectoderm = attract-o-derm
Endoderm = inner layer = internal organs.
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.
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!!
That was a really good video and helped me not only learn but UNDERSTAND gastrulation a whole lot more. :) Cheers AK Lecturer!
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
That is incorrect. The Hypoblast in the Pre-embryonic stage forms the Extraembryonic Endoderm also known as Heuser's Membrane.
Epiblast gives rise to all 3 germ layers
there are two different views for formation of three layers and both the views are accepted worldwide
Never have i ever understood something so clearly! You're truly talented, thank you so much :D
thankyou , this explanation is so clear rather than what was given in my textbook.
Thank you! This series of embryology actually help me a lot!
Omg you've taught me more in 11mins than 3hours at college. Thank you so much
lol oh college.. glad to hear it helped ! :)
I watched this while preparing for my UE,it helped me a lot,I understood a lot just within 11minutes...Thanks so much brother
This is a life saver during SWOTVAC, thankyou!
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 .....
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.
Epiblast diffrentiate into intraembryonic endoderm mesoderm ectoderm, these make up diff organs in our body.
Meanwhile hypoblast cell layer is pushed away, replaced by incoming proliferating endorderm layer.
Hypoblast will however proliferate into extraembryonic mesoderm and endoderm. These make up chorion amnion etc
You are amazing! Thank you
Maryam Hadi Thank you!
you just saved my semester
Thank you so much! Now it is clear for me and I think everybody who has watched your video. Thanks again!
keep doing this great work ,it`s really helping my younger brother,GOD BLESS u
Haris Manan thank you! will do :)
OH MY GOD! I just think about gastrulation 24 hours and can’t find out the way until i saw this.... thank you god bless u are blessing me:))
But i think diagrams 1&2 should be on cleaveage when morulla actually build up a tropoblast and morulla brought them tobe 32-cells which knows as blastokist and then where diagrams 1 exist they build up inner cellmass and outercell mass (tropoblast) that devided into 2 sitotropoblast(made up placenta) and sinsitiotropoblast(invasion to endometrium) when blastokist could reach deep of endometrium inner cell mass build up into epiblast and hipoblast, the next step is actually gaatrulation (week3)
Your videos are really amazing and encourages me to love biological science. Keep up the good work sir
suberb sir ...u explained it way to clear....👍👍👍 dont know why our college teachers dont hv such traits of lectures..very welll sir👍
You have a very professional skills in teaching , thanks a lot this help me a lot
Thank you! This is really good!
The best video out there describing gastrulation and the germ levels. Super helpful for studying.
Betsy M thats awesome to hear Betsy! thanks!
I agree with Betsy M. :)
Lav Karri Thank you Lav! :)
You are a soul saver.
god bless you, you are changing my life
Wonderfully explained. Great fan....!!!
Большое спасибо парень.Если бы ты вел лекции в моем универе гистология стала бы моим любимым предметом.
Loved this video..... In fact made me love the process of gastrulation
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 for the wonderful lecture. it has really helped me
way of teaching and the process of explaination is awsome....
I'd like it again if I could.
Another ‘simple’ explanation. Thank you!
Wonderful! I finally got it, thanks to you! You're so god as a teacher thanks
These videos are unbelievable.
OMG it’s smth unreal!!! You are the best teacher. Thank You soooooo much
sir your class apart, I watched all your biochemistry lecture videos . now im perfect
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
Authentic lecture👌👌👌
U make me love gastrulation Very good lucture
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 🇸🇦 ✨
You're a great teacher, even I'm speak spanish, I understood very well. Thank you :)
I appreciate your clarity so much.
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
thank you thank you thank you please dont stop teaching us !
Hi! I've discovered your lectures some hours ago and I'm really grateful for your great work! :) I'm from Spain and at this moment I'm studying for a State Exam to be teacher of Biology and Geology at Secondary School. I use Internet to recall some concepts, to illustrate my study or just to motivate myself. And well, I have to say that your videos have been very motivating! And I'm improving my English as well! Thank you so much!!!
María Lozano Roldán Hi Maria, thanks so much for sharing your story, thats awesome to hear! glad to be part of your study process! wish you the best on your upcoming exam! let me know how it goes :)
AK LECTURES Thank you so much! :)
Am learning a lot from this
This is so so so interesting. Thank you so much
thank you sir, you have cleared all my doubts........
The best lecture. Thank you so much sir.
this was really helpful in clearing my doubts which te books coudnt solve......thank u soo much u r the best.....
This video is very excellent.
well explained...very helpful to undrstnd the concept..thnx 4 uploading....
this is amazing! I have some questions though... but it's perfect.
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.
an amazing summary of gastrulation , Thanks a lot
This video helped me a lot
How does this guy explain this with such maestry? Thanks, dude
What a life saver
Thanks
Splendid! Splendid!
Greetings from the Netherlands,
Frank
Thank you. Such a clear communicator.
Thank you for your wonderful videos. I will use these in my embryology class. :)
Thank you so much sir. Your information is very helpful 😇
Sir, you are AMAZING ! Massive respect
Yassine Mezzat Thanks! :)
Always come on youtube with my biology book to find AK LECTURES
your videos are a great help for me... thank you!!!!
xiao yu you're welcome :)
very infromative ,its simple to understand keep it up ,,,,,,and upload more and more videos,,,from asia
5:38 correction, all 3 germ layers ( intraembryonic Endo Meso Ectoderm ) are derived from epiblast cell layer. None from hypoblast cells.
briliant lecture.you help me alot
U r amazing this video will help me a lot in giving my exams thank u