INTRO TO HUMAN EMBRYOLOGY; PART 1 by Professor Fink

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  • เผยแพร่เมื่อ 9 ม.ค. 2012
  • This is Part 1 of Professor Fink's Human Embryology Lecture. The Lecture distinguishes between sexual reproduction & sexual intercourse and describes In Vitro Fertilization. The Lecture then compares & contrasts Spermatogenesis with Oogenesis. The Lecture then begins a description of Human Embryology, including fertilization, the development of the Zygote into a Blastocyst & implantation during the 1st Week, formation of the Placenta & the Embryonic Disk during the 2nd Week. The Lecture also reviews the development of the Chorionic Sac, the Amniotic Sac, the Yolk Sac & the Allantoic Sac and discusses Chorionic Villus Sampling (CVS). An introduction to the 3rd Week of Embryonic Development is given. Other Terms presented include: Chorion Frondosum, Decidua Basalis of the Endometrium, Ectoderm, Mesoderm & Endoderm.
    Check-out professor fink's web-site for additional resources in Biology, Anatomy, Physiology & Pharmacology: www.professorfink.com
    Down-loadable e-Books of the Lecture Outlines by Professor Fink can be purchased from the WLAC Bookstore at: wlac.redshelf.com/
    “Hard Copy” Lecture Outlines can be purchased from the WLAC Bookstore at: onlinestore.wlac.edu/fink.asp

ความคิดเห็น • 292

  • @zuhairyassin505
    @zuhairyassin505 7 ปีที่แล้ว +23

    thats how a university lecture should take place

  • @regurgitate2472
    @regurgitate2472 7 ปีที่แล้ว +41

    you deserve a noble prize... in helping students get through college

  • @summerbreezenight
    @summerbreezenight 10 ปีที่แล้ว +7

    I wish you were teaching at our medical school. I really enjoyed your videos, and those who learn from you are lucky. Thank you for sharing and I would love to see other videos. It makes such a difference to have a good teacher.

  • @Jafaku
    @Jafaku 8 ปีที่แล้ว +5

    Dr. Frink, first and foremost - Thank you, and I love you.
    Your teaching methods are beyond amazing. Every piece of information that is transmitted by your voice is so perfectly explained, and it sounds like heavenly symphony in my ears.
    Sincerely,
    A future physician

  • @nadaraneen1
    @nadaraneen1 10 ปีที่แล้ว +2

    Thank you very much, I am a Neonatologist living in Dallas and a professor of pediatrics preparing for my third neonatal board renewal, I enjoyed the lecture, very nice refreshment, Best Regards

  • @BeatupMckillyoustein
    @BeatupMckillyoustein 10 ปีที่แล้ว +3

    I paid hundreds of dollars on anatomy books, and this explains it much better for free :) That is amazing - Thank you!

  • @dopeyoak
    @dopeyoak 12 ปีที่แล้ว +2

    Finally a clear explanation of embryology that just makes sense! To think I'm paying massive university fees for my lecturer, who couldn't make embryology more confusing if he tried, when the legendary Professor Fink has been on youtube all along.

  • @sandraschneider4987
    @sandraschneider4987 4 ปีที่แล้ว +1

    Professor Fink, I LOVE all your videos and your voices! I love when you say "YOU MAY ASK, SHOULD WE KNOW THIS?--- YES YOU SHOULD!" I've watched all your videos starting from when I started taking A&P 1 through A&P 2 and Pharm, and now in my 2nd semester of Nursing Prog. I wish you made new videos :-)

  • @H3lianthus
    @H3lianthus 11 ปีที่แล้ว

    This lecture is pure gold. Watching this it's so much easier to understand what is happening than plainly reading a book. The lecture is interesting, informative and understandable.
    A big Thank you to the professor. You are a great educator.

  • @NastehaColeWorld
    @NastehaColeWorld 9 ปีที่แล้ว +2

    I don't even know where to begin to thank you! your videos on anatomy have helped me so much!! I love how you explain concepts and how you revise basic ideas in order to understand the content! Thank you Thank you Thank you!!

  • @yagmur5082
    @yagmur5082 7 ปีที่แล้ว +1

    THIS IS TRULY AMAZING, thank you Dr.Fink

  • @drinaciofernandes
    @drinaciofernandes 7 ปีที่แล้ว +1

    I have been debating with these topics for years and never could understand it quite well enough.
    But this lecture has made it extremely easy to grasp and understand.
    Thank you Professor for a very fine video .

  • @yvonnejoey2265
    @yvonnejoey2265 8 ปีที่แล้ว +4

    Thank you Professor Fink my studies just got simpler!!! Simple explanation but giving the best & greatest understanding.

  • @professorfink
    @professorfink  11 ปีที่แล้ว +4

    Lecture Outlines by Professor Fink can be purchased from the WLAC Bookstore on-line. The LINK is posted at the bottom of the Video DESCRIPTION above.

  • @avsongs4648
    @avsongs4648 9 หลายเดือนก่อน +2

    I love your teaching style. It is clear and precise. Thank you for sharing your lectures.

  • @osaidayyadi8091
    @osaidayyadi8091 6 ปีที่แล้ว

    This is really the best video i’ve watched on youtube about basic embryology

  • @OG_McLovin
    @OG_McLovin 11 ปีที่แล้ว

    This was a great study tool. This professor really knows to get the pertinent information across!

  • @raxorium5851
    @raxorium5851 9 ปีที่แล้ว

    I love professor fink's online lectures. He makes them so exciting and incredibly easy to understand yet keeping the important details. It's actually fun watching them. Seriously!

    • @AnatomyGMCH
      @AnatomyGMCH 5 ปีที่แล้ว

      Must watch anatomy video th-cam.com/video/PkCY7BThcVM/w-d-xo.html

  • @anupamameegodage7016
    @anupamameegodage7016 ปีที่แล้ว +3

    Thanks a lot for your amazing teaching!!!! those who learn from you are very lucky!!!! May God Bless You!!!!!❤❤❤❤

  • @stephanie9089
    @stephanie9089 10 ปีที่แล้ว +5

    Dear professor Fink,
    I truly thank you for your lecture! In 3 days I'm going to take an exam in histology with introduction of embryology, and this is the first time I finally understand what my professor has been trying to teach us! Thank you!!!!
    All it takes is a good teacher, and you, Sir, is very good one!!!!

    • @professorfink
      @professorfink  10 ปีที่แล้ว +3

      thank you for your kind words

  • @mumutio
    @mumutio 11 ปีที่แล้ว +1

    Thanks a lot! Keep posting videos! I study medicine but we don't have a lot of lectures and it also helps to be able to pause the lecture like you can on youtube. I really appereciate this, I will barely have to open my books this week. :)

  • @margotverheyen6319
    @margotverheyen6319 10 ปีที่แล้ว +4

    Hello, I'm a medical student from the Catholic University in Leuven (Belgium). I started searching youtube to get some clear and correct information to refresh my embryology and I truly never saw a professor here teach the way professor Fink does, it is surely verry good explained and what a passion for the course! I saw part 1 and 2 and in 2 hours whole my embryology was again refreshed and clear, thank you so much!

  • @ananya9722
    @ananya9722 8 ปีที่แล้ว +48

    PROFESSOR FINK !!!!! YOU ARE LITERALLY MY LIFESAVER !!!!! YOU ARE THE BEST ANATOMY AND PHYSIOLOGY LECTURER I HAVE EVER SEEN IN MY ENTIRE LIFE....WHOAAAAA...... YOU INSPIRE ME A LOT SIR ! THE WAY YOU PRESENT IT !!! HATS OFF ! IN SHORT ......YOU ARE BORN TO TEACH ! :) :) :) GOD BLESS YOU AND YOUR ENTIRE SURROUNDINGS :)

    • @drinaciofernandes
      @drinaciofernandes 7 ปีที่แล้ว +1

      Studying in india? which year.
      I think agar tune sab caps mein nai dala hota , he would have responded to you :P anyways in case you ever do read this , all the best in your studies

    • @ananya9722
      @ananya9722 7 ปีที่แล้ว +1

      lol thanks and yes me india se hu ! :P

    • @drinaciofernandes
      @drinaciofernandes 7 ปีที่แล้ว +1

      Ananya Krishnan haha nice. Probably guessing your on some senior year considering you commented almost a year back . I'm in the first year though. Doing mine from Philippines.

    • @Chenxingneil
      @Chenxingneil 5 ปีที่แล้ว

      Ananya Krishnan th-cam.com/video/VoaxRbve42o/w-d-xo.html

    • @jensenleo9571
      @jensenleo9571 2 ปีที่แล้ว

      you prolly dont give a shit but does any of you know of a way to log back into an instagram account..?
      I was stupid lost the login password. I appreciate any assistance you can give me

  • @KripiMehra
    @KripiMehra 6 ปีที่แล้ว +1

    I love how you keenly explain everything, thank you for sharing your lecture, Dr. Fink.

    • @AnatomyGMCH
      @AnatomyGMCH 5 ปีที่แล้ว

      Must watch anatomy video th-cam.com/video/PkCY7BThcVM/w-d-xo.html

  • @MrReality2121
    @MrReality2121 9 ปีที่แล้ว +2

    Thanks a lot Doctor.You made my life much easier understanding these difficult concepts.Keep up the good work Sir

  • @kennyeyez
    @kennyeyez 11 ปีที่แล้ว +1

    Thank you so much! I'm studying for MCAT right now and this helped me understand a lot about embryo development.

  • @Aks0000
    @Aks0000 5 ปีที่แล้ว +1

    ur awesome professor Fink... the way of teaching.... I m really so grateful that u share u r lecturers here..it is much easier to understand... THANK YOU SOOO MUCH..…….

  • @hwiliams1
    @hwiliams1 10 ปีที่แล้ว

    You are phenomenal, Professor! Thank you sincerely!

  • @professorfink
    @professorfink  11 ปีที่แล้ว

    my Video Lectures are listed on my web-site. search google for "Professor Fink"
    www.professorfink.com
    You can view and down-load images used in the video on my web-site.

  • @kabaddiify
    @kabaddiify 10 ปีที่แล้ว +1

    Thank you Dr.Fink for well taught embryology lecture, way better than my MD1 lecturer .

  • @abdullahiibrahimuba1137
    @abdullahiibrahimuba1137 10 ปีที่แล้ว

    Your lectures not only educate but also inspire students and teachers to learn more and more

  • @psychothezombiekitty7021
    @psychothezombiekitty7021 5 ปีที่แล้ว +1

    ProfessorFink Thank you for your Embryology Lecture, you helping me get into medical school at John Hopkins University and its getting me to understand the compares and contrasts. I would like to be in your class and take notes and I will be buying your book.

  • @stefanie5934
    @stefanie5934 6 ปีที่แล้ว +1

    Thank you professor Fink. I'm a medical student and your videos helping me with my studies. Those videos are much more clear and saved my time.

    • @AnatomyGMCH
      @AnatomyGMCH 5 ปีที่แล้ว

      Must watch anatomy video th-cam.com/video/PkCY7BThcVM/w-d-xo.html

  • @drdeepthireddy
    @drdeepthireddy 11 ปีที่แล้ว

    THIS LECTURE IS TOO GOOD N SO MUCH EASIER TO UNDERSTAND AND PROFESSOR FINK ROCKS ;-)

  • @yehcp
    @yehcp 10 ปีที่แล้ว

    Thank you so much for this video, Professor Fink
    If any chance that I passed my embryology class, it's all because of you

  • @yasirabozaid7105
    @yasirabozaid7105 8 ปีที่แล้ว

    DR. Fink ... there are no word can express my thanks for you
    it helps my tooo much ..especially to understand ( spina bifida )

  • @hannahhoado9706
    @hannahhoado9706 8 ปีที่แล้ว

    Dear Dr. Fink,
    Your teaching is so excellent, it is easy to understand. Thank you so much for helping me.

  • @jesseweight8492
    @jesseweight8492 10 ปีที่แล้ว

    Thank you So much for making these lectures available to the public. It means a lot to me that you did. I will probably never be able to afford to take all of the courses that interest me but thanks to academics such as yourself I can learn to my hearts content

  • @wiseguy275
    @wiseguy275 9 ปีที่แล้ว

    Thank you very much, Professor Fink! Brilliant lecture. I am an MBBS passout, currently in India, preparing for the entrance exams for post-graduation here, found your lecture very helpful.

  • @sansdem
    @sansdem 11 ปีที่แล้ว

    this is this best lecture ever i got way more than reading a book

  • @madinas5978
    @madinas5978 10 ปีที่แล้ว

    These videos are so extremely helpful! I have a pharmaceutical background an lack a lot of knowledge in anatomy. This comes from a German student!

  • @sarahaldee6440
    @sarahaldee6440 11 ปีที่แล้ว +1

    Thank you so much. I just wish you'd gone a bit deeper and talked about how the notochord and neural tube formed. Or the movement of the neural crest cells and their derivatives. Or the umbilical cord. But really, you are an amazing professor, so thank you.

  • @bluemoondiadochi
    @bluemoondiadochi 11 ปีที่แล้ว

    the pic on 0:37 is GREAT! finally it all came together in that one picture! thank you Professor, your students probably do not know how blessed they are! and thank you for posting these lectures and making them accessible! this lecture will save my neck, so thank you!

    • @gamer_ksa9517
      @gamer_ksa9517 ปีที่แล้ว

      Did u end up becoming a doctor

    • @bluemoondiadochi
      @bluemoondiadochi ปีที่แล้ว

      @@gamer_ksa9517 Well, I got my diploma, yes. Tho it was for animal sciences BSc. But still helped me a lot.

  • @archanabottu665
    @archanabottu665 6 ปีที่แล้ว

    Thank you so much Dr. Fink! I will make you proud with my exam results

  • @jjafrieane
    @jjafrieane 12 ปีที่แล้ว

    the best lecture that I have ever had....

  • @avni1402
    @avni1402 11 ปีที่แล้ว

    thank you Dr Fink. what an art of teaching !

  • @benjaminkusiboateng6766
    @benjaminkusiboateng6766 9 ปีที่แล้ว +1

    WAS SO WONDERFUL,THE EXPLANATION WAS SO GOOD.

  • @alilopez4836
    @alilopez4836 10 ปีที่แล้ว

    I went through several videos trying to understand a simple concept but I only really understood thanks to you professor Fink. Thank you so much!

    • @professorfink
      @professorfink  10 ปีที่แล้ว +3

      Thank you for your kind words.
      I truly appreciate it.
      My sincere Best Wishes for your success!

  • @ankitasahu9729
    @ankitasahu9729 10 ปีที่แล้ว

    Very well explained, Professor Fink, so thankful to you. Being a medical student, its my point of view that the explanation makes the concept "crystal clear ". really enjoyed watching this video. It is "one of a kind" , very valuable. Thankyou sir.

  • @raygaytan1836
    @raygaytan1836 9 ปีที่แล้ว

    Again - you are awesome!!!!! Everything makes so much sense now. Thank you!!!!!!!

  • @omarhendawi3098
    @omarhendawi3098 8 ปีที่แล้ว

    by these videos you saved about my whole class. thanks alot

  • @caitlynnichols3632
    @caitlynnichols3632 3 ปีที่แล้ว

    So beyond helpful! Thank you so much for your videos!

  • @GoDioo
    @GoDioo 9 ปีที่แล้ว +3

    I like how you made it so easy to understand, great and vivid explanation.
    BTW your drawings are not that bad!.
    Thank you so much.

  • @AdoboBossShorts
    @AdoboBossShorts 11 ปีที่แล้ว

    Thank you Dr. Fink!

  • @tiathomas7940
    @tiathomas7940 7 ปีที่แล้ว +2

    OMG... This was a really good lecture. May seem long but it really gives a clear understanding of the embryonic development.

    • @AnatomyGMCH
      @AnatomyGMCH 5 ปีที่แล้ว

      Must watch anatomy video th-cam.com/video/PkCY7BThcVM/w-d-xo.html

  • @winteregg9508
    @winteregg9508 8 ปีที่แล้ว

    What a simple and clear explanation, Ty professor

  • @jhongunzalvis855
    @jhongunzalvis855 10 ปีที่แล้ว

    AWESOME LECTURE........MADE DIFFICULT POINT VERY EASY,,,TODAY I UNDERSTAND WHAT ACTUALLY EMBRYOLOGY IS...

  • @bless1012
    @bless1012 12 ปีที่แล้ว

    Professor Fink, I think you are the best!!!! I like him so much!!!

  • @NinuRenee
    @NinuRenee 10 ปีที่แล้ว

    Enjoyed every bit of the lecture, very educative. Thank you!

  • @alinofal9448
    @alinofal9448 10 ปีที่แล้ว

    i started to like embryology and histology because of you... you are indescribable :)

  • @ChrisJordan2010
    @ChrisJordan2010 10 ปีที่แล้ว +3

    Thank you so much for sharing your knowledge and wisdom. You are truly a great professor who has a knack at being able to teach others what you know. I have some professors who are very intelligent but have no idea how to share that knowledge with their students.

    • @AnatomyGMCH
      @AnatomyGMCH 5 ปีที่แล้ว

      Must watch anatomy video th-cam.com/video/PkCY7BThcVM/w-d-xo.html

    • @AnatomyGMCH
      @AnatomyGMCH 5 ปีที่แล้ว

      Must watch anatomy video th-cam.com/video/PkCY7BThcVM/w-d-xo.html

  • @AlexHop1
    @AlexHop1 11 ปีที่แล้ว

    This is a terrific explanation--really clear. Thank you!

  • @harmit8257
    @harmit8257 10 ปีที่แล้ว

    I'm a student from one of the Medical School in London. Your way of explaining stuff is amazing and I simply cannot thank you enough for making such detailed concept easy to follow. I wished you were my lecturer but as I watch more and more of your vidoes you have sort of become my lecturer :-)

    • @AnatomyGMCH
      @AnatomyGMCH 5 ปีที่แล้ว

      Must watch anatomy video th-cam.com/video/PkCY7BThcVM/w-d-xo.html

  • @xptrcc
    @xptrcc 9 ปีที่แล้ว +1

    This was very helpful! Thank you so much

  • @tinalyt
    @tinalyt 12 ปีที่แล้ว

    this is the best vid on the topic!! i'm much clear about it now

  • @idilmohamed_
    @idilmohamed_ 5 ปีที่แล้ว

    Amazing video, and professor. This video helped me tremendously!

  • @user-hg2gf1jh9i
    @user-hg2gf1jh9i 8 ปีที่แล้ว

    Thank you Doctor , your explaination is brilliant ممتن لك كثيرا

  • @deeacsm10
    @deeacsm10 11 ปีที่แล้ว

    can you give us the course somehow? it's the best written course that i've ever seen

  • @santiagofabiano2887
    @santiagofabiano2887 8 ปีที่แล้ว

    Thank you!, excellently explained and also great audio and image quality!, there are not many out there. And very funny when you imitate students with a goofy voice haha. Regards from Uruguay!

  • @sarahcostinas
    @sarahcostinas 5 ปีที่แล้ว +1

    Best embryology video on TH-cam. We need more professors like him. 🌹
    Best regards

  • @abdifatahbinmohamud143
    @abdifatahbinmohamud143 11 หลายเดือนก่อน +2

    I wish you are my lecture.i say it is awesome and thanks for your dedication professor

  • @joannastefaniak3698
    @joannastefaniak3698 7 ปีที่แล้ว +1

    Professor Fink is the Best.. wish all my teachers were like he is. Thank you for explaining everything🐣

    • @AnatomyGMCH
      @AnatomyGMCH 5 ปีที่แล้ว

      Must watch anatomy video th-cam.com/video/PkCY7BThcVM/w-d-xo.html

  • @SuryaDugastawa
    @SuryaDugastawa 9 ปีที่แล้ว +2

    Thank you very much Dr,Frink... For such a wonderfull explaination ,Now for me its much easy to understand :)

  • @Fii12
    @Fii12 11 ปีที่แล้ว

    Thank you so much for these videos! very clear explanations!

  • @chickadee584
    @chickadee584 10 ปีที่แล้ว

    Wow, you did a great job of explaining all of this. Very easy to understand, and I like how you repeat things on different pictures so we can really remember the words and concepts...

    • @AnatomyGMCH
      @AnatomyGMCH 5 ปีที่แล้ว

      Must watch anatomy video th-cam.com/video/PkCY7BThcVM/w-d-xo.html

  • @mydas1
    @mydas1 11 ปีที่แล้ว

    Very nicely done. This can be a tough topic. Well presented.

  • @juviennesabid4161
    @juviennesabid4161 11 ปีที่แล้ว

    thanks so much...im so ready for my report! NICE explanation!

  • @atl-gm1ms
    @atl-gm1ms 10 ปีที่แล้ว

    Excellent lecturer. Makes a difficult topic entertaining and engaging.

  • @gabriella12341000
    @gabriella12341000 10 ปีที่แล้ว

    Amazing Video and amazing teacher ! Thanks for sharing this sir !

  • @pozionmynd
    @pozionmynd 11 ปีที่แล้ว

    professor fink really is the best!!!

  • @7akkoyeb
    @7akkoyeb 12 ปีที่แล้ว

    A teacher that actuallly says F word.. WOw I am loving this thumbs up

  • @LocalMotion2189
    @LocalMotion2189 12 ปีที่แล้ว

    WOW! thank you sooo much. you have no idea how much that helped! :)

  • @crashproductions95
    @crashproductions95 10 ปีที่แล้ว +2

    Oh my god! It took me a whole semester to understand half of the information shown on this video! Thanks Dr. Fink! Amazing explanation!! I can't thank you enough! I hated embryology so much! Cause it seemed so hard on books and technicalities just made it worse! This video just made embryology way much more interesting for me!

  • @rutgerbaan9620
    @rutgerbaan9620 7 ปีที่แล้ว

    Very well explained, thanks!

  • @ResidentEevilone
    @ResidentEevilone 10 ปีที่แล้ว

    Extremely interesting topic, and really really well explained

  • @ArranRWilliamson
    @ArranRWilliamson 9 ปีที่แล้ว

    I've been struggling throw my embryology module all semester hardly understanding a thing, suddenly with one video it all clicks together. Sometimes that's all it takes. Thank you Professor Fink!

    • @AnatomyGMCH
      @AnatomyGMCH 5 ปีที่แล้ว

      Must watch anatomy video th-cam.com/video/PkCY7BThcVM/w-d-xo.html

  • @drtisa19
    @drtisa19 10 ปีที่แล้ว +3

    Dr Fink!~ You are so funny & thorough~ I am enjoying your presentation of this amazing subject matter. :o) Thank you!

  • @KyrieW
    @KyrieW 9 ปีที่แล้ว

    I loved this. Thanks so much!

  • @WilliamTGM
    @WilliamTGM 10 ปีที่แล้ว +2

    wtf?! i spend nights and nights of learning embrylogy without understand a glimpse...accidentally i saw this and KLICK!!! thank you so much for this video prof. fink!
    Greetings from a german medical student who understands embryology as of now!!! :-)

    • @professorfink
      @professorfink  10 ปีที่แล้ว +1

      Thank you for your kind words. Best wishes for your SUCCESS! Alles Gute! -- professor fink

  • @yadlapallimarong525
    @yadlapallimarong525 8 ปีที่แล้ว +2

    thankyou professor fink ...keep going

  • @ChrisLove2010
    @ChrisLove2010 10 ปีที่แล้ว +28

    Thank you Dr Frink - you are amazing and have helped me in my studies
    Thankyou

    • @professorfink
      @professorfink  10 ปีที่แล้ว +8

      Thank you for your kind words. I wish you much SUCCESS!

    • @Sabrina-vc9yt
      @Sabrina-vc9yt 4 ปีที่แล้ว

      @@professorfink thank you for your videos! Where can I find lecture outlines on embryology

  • @mimimkd
    @mimimkd 12 ปีที่แล้ว +1

    thank you very much ...your lectures are sooooo helpful but how can I get your slides??? does anybody know???

  • @nadatareksleem9390
    @nadatareksleem9390 9 ปีที่แล้ว

    Really you are a hero , amazing and different , I like your explaining method . thank you very much Prof / Fink

  • @ritika9725
    @ritika9725 3 ปีที่แล้ว +1

    It was very informative lecture ....thanku sir 🥰🥰

  • @gaurighimire5025
    @gaurighimire5025 4 ปีที่แล้ว +1

    thanks a lot doctor..much informative..

  • @oyinem417
    @oyinem417 8 ปีที่แล้ว

    Great lecture. You're a great teacher.

  • @biobytes1
    @biobytes1 7 ปีที่แล้ว

    professor fink? I've a question, that why tissues of endometrium slough off and release out from body in human but not in other eutherian mammal. What are the significance of this discard?

  • @rannoon123
    @rannoon123 10 ปีที่แล้ว

    Perfect, thanks so much!!

  • @shashankkumar3738
    @shashankkumar3738 7 ปีที่แล้ว

    Very nicely explained sir!!!!

  • @addismekonnen965
    @addismekonnen965 11 ปีที่แล้ว

    THis is such a great presentation.