Gastrulation | Formation of Germ Layers | Ectoderm, Mesoderm and Endoderm

  Рет қаралды 426,622

JJ Medicine

JJ Medicine

6 жыл бұрын

Lesson on Gastrulation and the Formation of the 3 Germ Layers known as the Ectoderm, Mesoderm and Endoderm. Gastrulation is a process whereby a bilaminar disc (comprising the epiblast and hypoblast cells) gets transformed into a trilaminar disc (comprising the germ layers of ectoderm, mesoderm, and endoderm). Gastrulation is responsible for forming the 3 germ layers including the ectoderm, mesoderm and endoderm.
After the egg is fertilized by a sperm, the resulting zygote will eventually develop into a blastocyst, which contains an inner cell mass that will become the embryo. The outer cells on the blastocyst are known as trophoblasts, which differentiate into syncytial trophoblasts and cytotrophoblasts. The syncytial trophoblasts will invade the endometrium of the uterus and implant the blastocyst. The blastocyst will eventually become embedded into the endometrium. The inner cell mass of the blastocyst will differentiate into epiblast and hypoblast cells, forming the bilaminar disc. The process of gastrulation transforms this bilaminar disc into a trilaminar disc comprised of the 3 germ layers.
I hope you find this video helpful. If you do, please like and subscribe to keep up-to-date on my newest videos.
JJ
***EXCLAIMER: The content (ex. images) used in this lesson are used in accordance with Fair Use laws and are intended for educational/teaching purposes only.***
NOTE: Although I try to be 100% accurate, if you see any mistakes in this video, please let me know and I will make a correction. Thanks so much!
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**MEDICAL DISCLAIMER**: JJ Medicine does not provide medical advice, and the information available on this channel does not offer a diagnosis or advice regarding treatment. Information presented in these lessons is for educational purposes ONLY, and information presented here is not to be used as an alternative to a healthcare professional’s diagnosis and treatment of any person/animal.
Only a physician or other licensed healthcare professional are able to determine the requirement for medical assistance to be given to a patient. Please seek the advice of your physician or other licensed healthcare provider if you have any questions regarding a medical condition.
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Although I try my best to present accurate information, there may be mistakes in this video. If you do see any mistakes with information in this lesson, please comment and let me know.

Пікірлер: 110
@lorijosephson9062
@lorijosephson9062 6 жыл бұрын
Second! I love these videos they help me so much I’m twelve and I’m gonna be a cardio thoracic surgeon
@sanamalikwaw2566
@sanamalikwaw2566 5 жыл бұрын
I am also mbbs
@lijemayne4287
@lijemayne4287 5 жыл бұрын
Wow. Good luck. 😘
@citycentregreen
@citycentregreen 5 жыл бұрын
You will be a very good doctor. I wish i had these videos when i was 12.
@atiyadavids4651
@atiyadavids4651 5 жыл бұрын
Study hard and always stay focused on your dream. As you get older, relationships and things are going to distract you, but please keep this the key focus of your life. I wish I told myself this when I was your age.
@jollofpoint8779
@jollofpoint8779 5 жыл бұрын
Lexi Dube hey i’m in medical school now, and all i can say is to keep up that energy! focus and visualization are key. your goal will be here before you know it. i believe in you.
@alysekasethiran8640
@alysekasethiran8640 2 жыл бұрын
Excellent explanation. You go very thorough in details. Thank you so much.
@clarachimiti7239
@clarachimiti7239 11 ай бұрын
Thank you for the amazing video! Cheerings from Brazil!
@mathew555s
@mathew555s 3 жыл бұрын
Extremely helpful video. This served as a great foundation to embryology.
@jjmedicine
@jjmedicine 3 жыл бұрын
Glad it was helpful!
@bitchoflivingblah
@bitchoflivingblah 3 жыл бұрын
Endoderm does not entirely form from the hypoblast, it is derived from mesendoderm an intermediate tissue that has the potential to differentiate into mesoderm or endoderm depending on inductive signals it receives. You can find some hypoblast (visceral endodoerm) cells in the definitive endoderm but most of these cells are derived from the ingress of epiblast cells.
@marcelozaparoli8180
@marcelozaparoli8180 4 жыл бұрын
Thank you very much! I got an A+ in embryology in college! Your lessons helped me a lot :)
@jjmedicine
@jjmedicine 4 жыл бұрын
Hi Marcelo! I'm so happy to hear that :)
@raniaquen8581
@raniaquen8581 Жыл бұрын
hi
@alexander22600
@alexander22600 3 жыл бұрын
That was awesome. Amazing visuals and explanation
@saravanakumar3034
@saravanakumar3034 4 жыл бұрын
Your explanation and visuals are amazing..now i have cleared about the germ layer formation.. this way surely will make to love embryology... Thank you so much sir
@to181
@to181 9 ай бұрын
wonderful; you helped explain something my professor tried to explain but I wasn't understanding it; your diagrams and explanation was nice.
@johnnyboy3390
@johnnyboy3390 2 жыл бұрын
JJ Medicine, you are phenomenal.
@avpresents4289
@avpresents4289 3 жыл бұрын
super sir you made this concept so easier .clearly understood this Thank you
@yuta2349
@yuta2349 Жыл бұрын
This was really explained so well.
@renan8387
@renan8387 4 жыл бұрын
thank you for the explanations! i really appreciate this! this helps me a loooot!❤️
@chanteswonderland1630
@chanteswonderland1630 3 жыл бұрын
thank u its so clear n helpful with summary note first then go into more details alone with images after!
@brookeharvey149
@brookeharvey149 4 ай бұрын
Good video, but slightly incorrect. The endoderm is not derived from the hypoblast. Rather, the endoderm is derived from epiblast cells that displace the hypoblast.
@anamwasil5433
@anamwasil5433 5 жыл бұрын
Great demonstration
@user-ei1wb1ph4l
@user-ei1wb1ph4l 6 ай бұрын
great explanation thank you! Very well presented
@dipanjaliyadav2455
@dipanjaliyadav2455 Ай бұрын
Best video watched till now,❤
@imranisnadurrahman1097
@imranisnadurrahman1097 4 жыл бұрын
Loved this video.. Thank you🙏
@rupammittal641
@rupammittal641 3 жыл бұрын
very good explanation and awesome video, thanks a lot for ur efforts👍
@lilhappi3954
@lilhappi3954 5 жыл бұрын
Amazing video!!! Helped me understand a lot for my physiology exam!
@rajeshkumarhomeopathydocto4139
@rajeshkumarhomeopathydocto4139 5 жыл бұрын
Good video.on 3 germ layers.
@jannecas5281
@jannecas5281 Жыл бұрын
Perfect explanation !
@caromango
@caromango 2 жыл бұрын
that was super helpful to recap embryology, thanks! :D
@humaidiqbal3679
@humaidiqbal3679 Жыл бұрын
hi babe.where do u live.
@Malath98
@Malath98 3 жыл бұрын
Thank you very much شكراً جزيلاً 🙏🙏💜
@bloodyfitness8623
@bloodyfitness8623 8 ай бұрын
Amazing video,excellent explanation
@Kinda-sw3yw
@Kinda-sw3yw 4 ай бұрын
A first year medical student I want lots of things but remember that the most important thing is to be successful every thing else comes an goes❤❤❤❤
@frobelmatevosyan5212
@frobelmatevosyan5212 Жыл бұрын
The blastocyst will leave the zona pellucida, or membrane, of the egg cell before implanting itself inside the uterus. The zona pellucida is a thick, jelly-like layer that surrounds the egg cell and helps to protect it. Once the blastocyst has developed to a certain point, it will hatch out of the zona pellucida and begin the process of implantation in the uterus. The process of implantation involves the gradual penetration of the endometrial lining by the blastocyst, and the establishment of a connection between the blastocyst and the endometrial blood vessels. This connection is essential for the nourishment of the growing embryo.
@draliyumuhammed1622
@draliyumuhammed1622 4 жыл бұрын
I learned many things out of ur upload thank you so much
@ceviliousfrancesco444
@ceviliousfrancesco444 6 жыл бұрын
Awesome video!
@bothwellmusarurwa5062
@bothwellmusarurwa5062 4 жыл бұрын
Good video there is incorrect info there. all three germ layers arise from the epiblast
@yoyopiero
@yoyopiero 4 жыл бұрын
i hate medschool,im very tired, just wanted to put that out there. great video tho
@islamicreminder2208
@islamicreminder2208 3 жыл бұрын
Don't give up ✨you can do itt
@kubranuraydn5036
@kubranuraydn5036 4 жыл бұрын
ı want to ask a question. where is the alloenteric diverticulum and what does it do? Thank you so much for that beneficial video.
@JINAN_MUKHTAR_OMARABUGHARSA
@JINAN_MUKHTAR_OMARABUGHARSA Жыл бұрын
Great explaining 🎉
@Maahi939
@Maahi939 Жыл бұрын
Thank you so much brother
@mishaltariq4785
@mishaltariq4785 4 жыл бұрын
Very informative...
@oznursagr5118
@oznursagr5118 5 жыл бұрын
Your videos really helps to understand that topic. Also makes simple. 💗💗💗💗💗💗💗💗
@sharadalamani1849
@sharadalamani1849 Жыл бұрын
Superb explaination 👍
@maielgnainy-lb9pl
@maielgnainy-lb9pl 7 ай бұрын
Thank you very much I really understand that ❤❤❤❤❤❤❤
@sccm100
@sccm100 5 жыл бұрын
Thank you
@felixetasker2783
@felixetasker2783 4 жыл бұрын
i thought that all germ layers originated from the epiblast cells?
@Dr_WhiteWalker
@Dr_WhiteWalker Жыл бұрын
Yup, you are right.
@eaglenest6923
@eaglenest6923 4 жыл бұрын
thanku so much sir
@F.AlimiMusic
@F.AlimiMusic 5 жыл бұрын
very nice explanation...why don't you make more Embryology videos???
@aleeshamuhammed2937
@aleeshamuhammed2937 2 жыл бұрын
thank you
@kaboyowycliffe7103
@kaboyowycliffe7103 Жыл бұрын
Thank you sir
@zainabchoban6998
@zainabchoban6998 Жыл бұрын
Perfect
@efangnsan3074
@efangnsan3074 10 ай бұрын
Thanks bro
@jremyy
@jremyy Жыл бұрын
Goated vid
@drvikramgg
@drvikramgg 3 жыл бұрын
Hi,wanted to ask if epiblast and hypoclast are actually present inside blastocyst.can I say blastocyst converts into epiblast and hypoblast which eventually gets converted into epiderm,mesoderm and endoderm?
@L.kintar
@L.kintar Жыл бұрын
فديتك منقذي🥹❤️❤️
@aishakhalid3839
@aishakhalid3839 5 жыл бұрын
This video solved me probsssssss Thnk u
@jjmedicine
@jjmedicine 5 жыл бұрын
You're very welcome! Glad it helped :)
@yusufkurdi3582
@yusufkurdi3582 Жыл бұрын
I have a question / is the primitive streak give informations to the genes to create human embryo and our body ?????
@hagermohamed8404
@hagermohamed8404 4 жыл бұрын
I am a medical student but l am afraid of failure in this faculty every thing is difficult what should l do please 😭😭😭😭
@arunagayathri6669
@arunagayathri6669 4 жыл бұрын
Hager Mohamed hello hope you are fine ,I suggest you to go through textbook if you’re 1st or 2nd yr or you can opt some online platform according to your need or live sessions like satellite classes too will be helpful.
@muhammadumar9402
@muhammadumar9402 4 жыл бұрын
From which university ??
@weslietadiwa9231
@weslietadiwa9231 5 ай бұрын
Pray to God for help
@loststar12347
@loststar12347 3 жыл бұрын
Plz anyone tell me from where Endoderm form.....many other videos and Google tell s three layers forms. From epiblast ..
@yusufkurdi3582
@yusufkurdi3582 Жыл бұрын
I have a question is the primitive streak creat the embryo ??
@camillesanoria2789
@camillesanoria2789 2 жыл бұрын
Does every organism possess different gastrulation processes?
@laughterdose-bysolen2587
@laughterdose-bysolen2587 4 жыл бұрын
Which germ layer is formed first???
@maiklrock324
@maiklrock324 Жыл бұрын
Is the primitive streak create the 3 germ layers 🤔?
@ajmalalam5842
@ajmalalam5842 3 жыл бұрын
Good
@user-jv7ti7ut7z
@user-jv7ti7ut7z 11 ай бұрын
Is the also the formation of germ disc
@cutecats6890
@cutecats6890 5 жыл бұрын
damn cool.
@prosurfaholic5121
@prosurfaholic5121 3 жыл бұрын
Why did I get myself into this...
@gurusonar6733
@gurusonar6733 3 жыл бұрын
Which of the germ layer is formed by delamination of cells from the inner mass.
@sahalyussuf4005
@sahalyussuf4005 2 жыл бұрын
Endoderm
@ramlacraxamn4672
@ramlacraxamn4672 3 жыл бұрын
Neuralatin where plz?
@BvirtuallY
@BvirtuallY 5 ай бұрын
Spoken to the 12-year-old future physician: You are rare but perhaps always always remember this: you may and should question all things, through both heart and mind. You are not an unnatural hospital system of rules and regulations. You are a natural person like every other natural being on our living mother planet, be them homeless, rich, poor, handicapped, ignorant, loving, spiteful, or poor. If you go down your honorable path, never ever forget this: Do to an other what you'd have done to yourself. Listen, however doubtful or tired you may be. Listen and think as if you yourself are your patient. And for fun, ask why a patient has been called "patient" while doctors practice on each.❤❤
@salonibalan
@salonibalan 3 жыл бұрын
5:13 gastrulation
@rajshedge198
@rajshedge198 2 жыл бұрын
You saved my 5 min ☺️🤧
@dontdisturb5815
@dontdisturb5815 8 ай бұрын
just remind me and ya'll wherever you see "blast" with a word in biology it probably means "pre-mature"
@itsrose2062
@itsrose2062 3 жыл бұрын
Orign of sperm is mesodermal ..?
@Dr_WhiteWalker
@Dr_WhiteWalker Жыл бұрын
Kindly correct your explanation. All the germ layers are formed by Epiblast only. Hypoblast doesn’t contribute to the formation of endoderm.
@apdroidgeek1737
@apdroidgeek1737 5 жыл бұрын
sooo much words cant process ahhh
@kryziaa
@kryziaa 4 жыл бұрын
skeleetle
@abodraconian-9114
@abodraconian-9114 2 жыл бұрын
In the Holy Quran, God speaks about the stages of man’s embryonic development: We created man from an extract of clay. Then We made him as a drop in a place of settlement, firmly fixed. Then We made the drop into an alaqah (leech, suspended thing, and blood clot), then We made the alaqah into a mudghah (chewed substance)... 1 (Quran, 23:12-14) Literally, the Arabic word alaqah has three meanings: (1) leech, (2) suspended thing, and (3) blood clot. In comparing a leech to an embryo in the alaqah stage, we find similarity between the two2 as we can see in figure 1. Also, the embryo at this stage obtains nourishment from the blood of the mother, similar to the leech, which feeds on the blood of others.3 The second meaning of the word alaqah is “suspended thing.” This is what we can see in figures 2 and 3, the suspension of the embryo, during the alaqah stage, in the womb of the mother. The third meaning of the word alaqah is “blood clot.” We find that the external appearance of the embryo and its sacs during the alaqah stage is similar to that of a blood clot. This is due to the presence of relatively large amounts of blood present in the embryo during this stage4 (see figure 4). Also during this stage, the blood in the embryo does not circulate until the end of the third week.5 Thus, the embryo at this stage is like a clot of blood. So the three meanings of the word alaqah correspond accurately to the descriptions of the embryo at the alaqah stage. The next stage mentioned in the verse is the mudghah stage. The Arabic word mudghah means “chewed substance.” If one were to take a piece of gum and chew it in his or her mouth and then compare it with an embryo at the mudghah stage, we would conclude that the embryo at the mudghah stage acquires the appearance of a chewed substance. This is because of the somites at the back of the embryo that “somewhat resemble teethmarks in a chewed substance. You can see all the pictures compared to to original text if you google it. Highly watch professor Keith Moore. Please if your interested more watch Keith Leon Moore was a professor in the division of anatomy, he explains everything in details
@PravdaSeed
@PravdaSeed Ай бұрын
💚 Thanks 💚 Now i understand Why Westerners Are extremely slow to getting it. All these nonsense Greek Terminalogy...
@mehvijan6590
@mehvijan6590 Жыл бұрын
False knowledge
@sitarampandit2752
@sitarampandit2752 4 жыл бұрын
Thank you
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