The Process of Gastrulation 

2h of lecture in 3min Tanx

Fr this video is incredible. Throughout 5h of embryology lectures, the two videos shown from this channel were the only things I truly understood two years ago. Now I‘m studying for an exam and this video is still gold.

I couldnt understand gastrulation just by reading about it, this cleared all my doubts. :)

Thank you for this video!!! So much clearer than reading from a textbook

Incredible video. Thank you so much. Perfect for refreshening my knowledge without painfully collecting information from textbooks for 2 hours

It is seriously so helpfull to see this in video rather than reading a text. Very clear too, understood everything even though English is not my first language. Thanks!

Perfect: the only possible word for this video. Loved it! Thanks a lot

I was so confused about cranial and caudal ends. The way you rotated it and showed it, now I understand what those images in the books taken from different angles mean.

Thank you soo much!helped me a lot!

Thank you so much. Now I only have to translate the technical terms, but without this I think I would have never understood.

im a first year medical student and this is so helpful!! thank you

Beautiful! Thank You very much

also very helpful for vet med students :)

THE LEFT & RIGHT SIDES ARE LABELED WRONG!!! It really confused us in our embryology class. I didn't want everyone else confused too.

Thank you so much, great video!

So much thanks for this video, it helps a lot.

thank you🌼

One of the best ways to demonstrate.

Thank you veryy much!!!! Helped me a lot for my exam!.....

Al final de la segunda semana de desarrollo, se formó el disco embrionario bilaminar que consiste en hipoblasto y epiblasto. A lo largo de la tercera semana de desarrollo, este disco bilaminar se diferencia para establecer tres capas germinales primarias. (proceso conocido como gastrulación). Alrededor de los 15 días después de la fertilización, se forma una estructura engrosada a lo largo de la línea media en el epiblasto cerca del extremo caudal del disco embrionario bilaminar. Esto se llama la línea primitiva. En esta etapa, la línea primitiva de la formación define los ejes principales del cuerpo del embrión, incluidos los extremos craneales (hacia cabeza) y los extremos caudales (hacia la cola), así como los lados izquierdo y derecho del embrión. en el extremo craneal del disco embrionario, la línea primitiva se expande para crear un nodo primitivo, que contiene una depresión circular, conocida como fosa primitiva. esta depresión continúa a lo largo de la línea media del epiblasto, hacia el extremo caudal del linea formando un surco primitivo. Una vez formadas, las células del epiblasto migran hacia el interior hacia la línea, se desprenden del epiblasto y se deslizan debajo de él, hacia el interior del embrión. Este proceso se conoce como invaginación. estas primeras células para invaginar a través del surco primitivo invaden el hipoblasto, y desplazan a las células. las células hipoblastas finalmente se reemplazan completamente por una nueva capa de células proximales, que se conoce como el endodermo definitivo. Para el día 16, la mayoría de los hipoblastos han sido reemplazados. Las células restantes del epiblasto ahora se denominan ectodermo y forman la capa más externa y distal. algunas de las células epiblastas invaginadas permanecen en el espacio entre el ectodermo y el endodermo definitivo recién formado. estas células forman una capa germinal, conocida como el mesodermo. Una vez se formó el endodermo definitivo y el mesodermo. Una vez que se completa la formación del endodermo definitivo y el mesodermo, las células epiblastas ya no migran hacia la línea primitiva. A lo largo de la gastrulación, el ectodermo continúa formándose desde el cráneo hasta el extremo caudal del embrión, estableciendo tres capas germinales primarias distintas en todo el disco embrionario. El proceso de gastruación es finalmente completo.

MILLION TIMES BETTER THAN A TEXTBOOK

Thanks the video is amazing

THANK YOU SO MUCH

thank you so much for such a helpful video !!!!!

Thank you so much sir

amazing video...thanks

Thanks sir for your help😊

Thank you so much this was very clear

So the endoderm proper is formed from the proliferating primitive groove cells and the ectoderm proper from the epiblast?

really helpful

Is there any video for neurulation???

Thank you so much

please tell about the mechanism of cell polarization during gastrulation

thnkyou it help me a lot

Thanks. ❤️

thank u so much....so helpful

Thank you So much

Awesome

Thank u sir it is really very helpful 👍😁

nice video... it so helpful

Thank you very much.

Its reallly helpful.Animations helps aloot.......

thank youuuuuuuuu soooooooooo much!

better than my medical school lecture

thank you

does the primitive streak form in the amniotic cavity? i'm confused

Thank you❤️🌸

I have a question. Since the primitive streak is formed at the dorsal side of the embryo, shouldn't left and right be switched?

I REALLY found it so difficult to understand it especially this lesson in biology (Embryologie) so how can I understand it easily ...if someone knows please share with me the information

very helpful

You are the best ❤️

amazing 10/10

Can i know, what kind of that gastrulation?

Thank u!!!!

Thank u so much ☺️

It helps me so much

Primitive streak arrived at cranial end or caudal end?

Thanx alot

Which germ layer forms first and which one is the last to form out of the three?

TYSM

10/10

Thnx man

This is beautiful. My story looks like Anshika's

at the beginning you talk about primitive streak forming in caudal end and then you talk about this end as a cranial part of a body... why?

At the end of the gastrulation germ layer formed is??

Does anyone else notice the buzzing sound in the background? It's bugging me.

Thanks

shit, i get it now. tysm!!!

Tnx sir

Sir What about Involution, Ingression Delamination and Epiboly

My test is tomorrow so probably won't get a response in time but, don't the cells move by ingression, not invagination?

is there still an archenteron for this organism?

te amo gracias

Thank god

Sir yeh kahan sey parha rahy means konsi books follow ki hui??

it it gastrulation in birds?????

Easy to understand as drinking water

Good yr

Where is Hensen's node

🙏🙏🙏🙏

plzzzz tell anyone

It is incase of human

🍎🍎🍎

A word by word copy and full animation copy of gastrulation video by embryology channel

i think left and right are wrong at min 1:05

thank you so much for such a helpful video !!!!!!

Thank you so much