Fertilization

[@user-mz6ob9fd4w]

By the end of med school, I would have already watched all of your videos 'cause whenever I'm looking for some explanation, you got a video for that. Thank you so much!

[@saquingjohnpaul6585]

This was lectured to us by our professor. Exactly the same sequence. I bet he watched this before going to class. 😂 Thank you very much!

[@a.m.526]

highly underrated channel! you explain complicated processes in high enough detail in short videos. Amazing !!!! Thank you so so much!!

[@saudmohammed9219]

What about the "Corona Radiata"?

[@abnormalphysics]

Hello Andrew, I like the way you present your lectures, in terms of pace and the tone is perfect!

[@castrotwum2830]

Absolutely on point. Breaking complex topics into simpler and understanding form. A genius indeed.

[@Ilya2193]

Very helpful, thanks for all your hard work! However, I think it would have been useful to mention how the egg has the corona radiata outside of the zona pelucida and that the sperm has to break down the hyaluronic acid to bury through those granulose cells. Also, I think it's helpful to know that the egg is stopped in metaphase II prior to the Ca wave during which enzymes allow for meiosis to resume.

[@AKLECTURES]

Thanks! There are a ton of facts that I could of mentioned but then the video would of been much longer ;-)

[@Ilya2193]

Gothca. Who is your audience for these videos? I know you're in med school and many of these are relevant for review but are pretty basic.

[@phiegaming2574]

Great lectures. You present your knowledge very clearly. It's a shame you don't get much recognition for your great, and laborious efforts. Keep up the good work! Thank you!

[@AKLECTURES]

Phie Gaming Thanks for your kind words! :-) I really appreciate that!

[@zainababdulkareem7746]

I depend totally on your lectures thank you so much

[@AKLECTURES]

زينب عبد الكريم you're welcome! :)

[@elijahshackelford3746]

You are amazing dude. You deserve way more views. You are a great teacher. So much better than my developmental biology professor.

[@junczhang]

your videos are so much better than those big prep company's!

[@caitlinmohr7052]

Something about the way you present is very intriguing and I can't help but pay full attention which is perfect for my learning, so thank you!!!

[@psydocthepsyduck8382]

Your lectures always seem to include explanations exactly where I need them. Thank you so very much!

[@AKLECTURES]

thats awesome! what are you studying for?

[@psydocthepsyduck8382]

I am doing overall review for the MCAT.

[@vitormachado3714]

I learn so much with your videos. Thank you and keep up the good work.

[@paulssaliwasswa4896]

thank you AK ...u have real made me enjoy medical school

[@jkawalsky11]

Do you do tutoring for the MCAT?

[@rapmonsternotdancemonster4195]

Please don't stop doing this great videos they are so helpful :)

[@evelynmbewe9593]

I love your explanations they are amazing

[@princessfionafaith9664]

Love ur work man. Great explanations and perfect understanding.Keep it up.

[@rajarithika680]

I am totally dependent one lectures, because u r amazing 💯

[@abdulwaseitanbah43]

very helpful , thank you for all your hard work

[@FutureDoctor790]

I realy impress from you sir G

[@z3rob151]

I count sit my A levels without the help of your videos. Thank you so much. Please make more though.

[@justlough8216]

Thank you prof. you help me so much I follow you from Iraq

[@abshar1997]

it's really very helpful good job keep it up!!! u explain very gracefully :)

[@salabest2342]

its really nice! good job

[@quinxx12]

Something I don't understand is that it has been said that the oozyte undergoes Meiosis II AFTER the fertilization which results in the haploid chromosome set. Is the fertilization then seen only as the penetration of the sperm through the plasmamembrane? I mean the two chromosome sets can only fuse when both are haploid, right?

[@pratz2308]

The secondary oocyte undergoes meiosis 2 once the sperm binds to the zona pellucida. So once the sperm binds to the zona pellucida, the secondary oocyte quickly undergoes meiosis 2 to become an ovum and then fertilisation occurs. So it's DURING fertilisation, not after :)

[@quinxx12]

Thank you that makes sense!

[@moddyhh]

Am really enjoying your lectures☺

[@sonalisingha2714]

What is internal fertilization

[@yagmurcamd]

Progress,

[@nasib167afg]

Hey Andrea how long does it take you to do the research for these vidoes? do you read a textbook or just look it up online?

[@AKLECTURES]

Andrea?

[@nasib167afg]

AK LECTURES my bad man lol i have a friend named andrea and made a mistake

[@MUKESHSINGH-bn4im]

very helpful sir thank you

[@سيزرمان-ح8ظ]

You are amazing thanks

[@aliismael338]

W

[@vikrambhaskar7976]

doesn't the sperm encounter Corona radiata first and then followed by zona pellucida?

[@Beckade]

Yes, it does encounter with corona radiata first and penetrate it before it releases the enzyme (hyaluronidase and acrosin) to drill the hole in zone pellucida to get to the oocyte. We have had med-student losing points for not mentioning the corona radiata, but I think that he is mentioning the main processes and skipping some details. I watch the videos before reading my books just to get the greater picture before digging in to the details :)

[@joecamel455]

Gj