Spermatogenesis | Reproductive system physiology | NCLEX-RN | Khan Academy
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- เผยแพร่เมื่อ 6 ต.ค. 2024
- Created by Vishal Punwani.
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Another function of the tight junctions is to protect the haploid cells from our own immune system because they only have half the chromosomes so the body thinks it’s foreign.
stfu martin
thank you martin :)
That is called as BTB: Blood testis barrier.
Yes! If you watch Ninja Nerds video on Speematogenesis, you will find that information there. He speaks on that in his video. That’s why it’s important to watch a few different video’s when learning this material! 😊
@@navaneeth_us oh
I just stumbled upon one of your old videos from 2012 about inotropic effect on the heart. Then, I started watching your other videos and now I'm a subscriber and will share your videos on my FaceBook page. You are one hell of a teacher!
The right junction between basal and ablumenal is correctly named blood testis barrier, i case you want to dig further more.
:)
thanks buddy
You have a good calm voice, It's kind of better to understand everything because of that (Y)
All too often, this gets negated when one first learns about meiosis; ie, first there's mitosis of cells that give rise to meiosis. Thank you so much for the great explanation.
Awesome video 🙌🏻
Another point, the tight junction forms the Blood Testis Barrier (BTB) to prevent the immune system to attack on newly formed secondary spermatocyte (as they are haploid)
Simply amazing :) , after watching some of your videos SIR i have subscribed and i basically watch every video u make , so please keep up the AMAZING work and discuss as many subjects as you can because you are doing students all over the world an AMAZING favor :).
Winner of a video, been searching for "how to sustain an erection" for a while now, and I think this has helped. Have you heard people talk about - Meyylan Konophia Theorem - (just google it ) ? Ive heard some super things about it and my neighbour got cool success with it.
One comment on the 2nd meiosis relative to 1st meiosis. The 1st meiosis goes from 1 diploid cell (46 chromosomes pairs) to 2 haploid cells (23 single chromosomes), the 2nd meiosis goes from 1 haploid cell (23 single chromosomes) to 2 haploid cells (23 single chromosomes). Making 4 spermatides from 1 primary spermatocyte in total.
I understand if this is what you are trying to make a point out of, but its a bit obscure to people who only watch this video.
There are still 23 singles in the 2nd meiosis, as it was in the 1st, why comment that there is 23 singles in the 2nd, like there would be a difference when there isnt?
Why is it not mentioned that there is a 2nd meiosis? (its only written and highlighted once and not for both meiosises)
one of the clearest and most straightforward vids i’ve ever watched. thank you so much!
after 8 years , you just safed me !! i'm in my last year and you just answer all my questions , thank you so much
Human creation in Quran
وَلَقَدۡ خَلَقۡنَا ٱلۡإِنسَٰنَ مِن سُلَٰلَةٖ مِّن طِينٖ
We have created man from an extract of clay.
(Surah Al-Mu'minun, verse 12)
ثُمَّ جَعَلۡنَٰهُ نُطۡفَةٗ فِي قَرَارٖ مَّكِينٖ
Then We made him a sperm-drop in a firm resting place.
(Surah Al-Mu'minun, verse 13)
ثُمَّ خَلَقۡنَا ٱلنُّطۡفَةَ عَلَقَةٗ فَخَلَقۡنَا ٱلۡعَلَقَةَ مُضۡغَةٗ فَخَلَقۡنَا ٱلۡمُضۡغَةَ عِظَٰمٗا فَكَسَوۡنَا ٱلۡعِظَٰمَ لَحۡمٗا ثُمَّ أَنشَأۡنَٰهُ خَلۡقًا ءَاخَرَۚ فَتَبَارَكَ ٱللَّهُ أَحۡسَنُ ٱلۡخَٰلِقِينَ
Then We turned the sperm-drop into a clot, then We turned the clot into a fetus-lump, then We turned the fetus-lump into bones and We clothed the bones with flesh; thereafter We developed it into another creature. So glorious is Allah, the Best of the creators.
(Surah Al-Mu'minun, verse 14)
Thanks
no one asked
I believe in the same religion but we should respect that other people don't.
Don't put anything religious in a place where we are trying to study,
@@sethhyman3781 hé did not violate anybody
@@sethhyman3781 actually his comment Can be helpful in guiding others to the right relegion it IS not harmful and it Can be helpful so its good
HELL YEAH! IT'S JST AWESOME THANK U SIR FOR THIS BEAUTIFUL EXPLANATION!!✌
Cant appreciate enough! Thank you Sir
Thank you so much! Now, onto oogenesis!
Awesome. Thank You.
How about, please, some information on the stories of people's observations and discoveries of all this?
Great videos! Many thanks.
From 4:20 Is there any pathological conditions where the spermatogonium divides and both differentiate, leaving no spermatogonium behind
I've been struggling with this topic and this video made it so clear, especially in the part where the number of chromosomes was explained. Thank you!
well explained! this content creator should receive salary instead of some teachers who don't even teach..
Thanks
This video is excellent !
Thank you, very helpful!
Very helpful!
great video.
Great video Vishal and Khan Academy! Super helpful
Excellently explained
Simple. Thank you.
Where does sperm DNA come from and how does it get damaged over years since they gets replaced very frequently? Why do Yamanaka factors not bring reproductive cells to pluripotency?
Thank you ,it's very helpfull
very nice video!
Great video, thank you very much!! (:
Please note this video contains sexual content? tf lmaoo
I knew someone was gonna mention this
Me to 😂
did'nt
it say sexual HEALTH content?
Had to turn back
Please don't use squeeze and testes in the same sentence. Gives me the heebee jeebees! LOL!
Amazing and effective work! Well done. Keep it up. And Thanks :D!
Nice!
Please always try to improve your voice volume
when it becomes spermatosit primer, why the cell can be bigger than before?
hi I have it written in my textbook that the second split of the sperm cell is still mitosis. I think this is contrary to your video where you indicate it is meiosis and first meisos division doesn't occur till after primary spermatocytes . Can you please confirm this or do I have it incorrect? I feel like you might be slit in mitotic proliferation?
+Grits420 The first split is mitosis, the second split is meiosis 1, followed by meiosis 2 being the third where the immature sperm cells are formed
nice
this video is amazing
Why the chromosomes aren't XY since it's male gamete 7:27 ?
Those are not X, they're the shape of chromosomes
your audio is always very low
Can anyone tell what kind of software programs are used to produce videos like this ? is it a simple paint program maybe or something else?
Mohamed Mekkawi i think it's called yahoo doodle or something like that
WHAT?!
Ramiha shahzadi group 11, 4th sem
but did i ask?
No you didn't, but others did
Watching it makes mine hurt for some reason.
q
unobhowa wanku zvegame siyana nazvo enda kunorima
thanks
Great video thank you!