Female Reproductive Cycle | Ovulation

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Ninja Nerds!
During this lecture Professor Zach Murphy will be discussing the female reproductive cycle, teaching important concepts about ovulation. We hope you enjoy this lecture and be sure to support us below!
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#ninjanerd #Ovulation #FemaleReproductiveCycle

[@pavelzverev5426]

Zach, i dont know if you will read this, i hope you will. I watched this video on my 1st year of medschool for histology class. I loved it, i finally understood all of those details and remembered them with ease. I was best in my class because of you. And more importantly, i really fell in love with medicine and human physyology. Years passed, i learned alot of disciplinnes, i encountered many many difficulties, i grew up as a clinician, i struggled under loads of information. But i sucsessfully made it to my 5th year. And now im on my gynecology rotation where i need to remember all of this again. And of course, i came here, back to this video... And i have to tell you, that thrill and exitement you gave me years ago is still there! You do not know me, but to me you are an old friend who explained me so much... You really helped me, you know... Thanks, brother! I didnt think that i would tear up, but im finishing this comment with watering eyes... I hope you have a fantastic time and amaizing friends around, not many people are so priveleged to influence so many people as you do. All the best to you and your team. Thanks again!

[@Mikemolfetta]

My Same Story ❤️

[@farjanamd281]

This comment is making me cry 😢

[@sneha-zb1yg]

Seriously! he is blessed. Lots of thanks to him from my side too..thank you prof.zach for being so Fantastic teacher.

[@rahimarshad4191]

Revisiting in my clincial years too.

[@yumtaste2417]

I feel you, because thats exactly how I feel when he explains things thoroughly yet so easily.

[@neginnamavari6155]

As soon as I start earning money, I will be donating to this channel. You, my friend, are an AMAZING teacher. You have taught me more in 30 minutes than my professors have in 10 weeks. Thank you for existing! I owe my passing grades to you.

[@marianapeixoto5624]

I'm a med student and i don't earn money as well but I signed his patreon anyway and I give him 1$/month. Obsly it aint much but if everyone who watches his videos did that it would help for sure, and it's my way to thank him for this amazing work :)

[@ibrahimkolbaly6928]

Bo

[@yasminam.6577]

same i swear

[@haniaadan8915]

Ii kkk lklp ya Are sR RSS aww dx oo::2-' xx oof Hhhh I’ll kj kee um my dad furye🥠❤️🍖🍖🥗🍖🥗👌😅😅

[@silvaanimelover8924]

He's just a miracle I'm a med student I love him so much ❤️❤️❤️❤️

[@piyushsumera1433]

These days when websites are charging students for even MCQs. It is very tough to praise your team in words with my not that much enriched vocabulary..I am not making that much money..I will start earning from next year once my residency starts(Hopefully) and I will contribute first that to your channel..God bless you and your team..

[@NinjaNerdOfficial]

So happy you can benefit from this channel! 👍 Thanks for your support!

[@toms7913]

A year has past :)

[@medicos4399]

3 years passed

[@Dopamine-.-]

4 years passed

[@medicos4399]

@@alexvidu4517 bhai itna jaldi 4 year passed kaise ho gya😂😂

[@matiullahkhan9111]

I am myself Endocrinologist and thoroughly enjoyed all your Endocrine basic lectures. Highly recommended for Medical students, Drs, and even specialists. You are really doing a great job by teaching such complex stuff in an easy and friendly way. I wish I had such a teacher in my MBBS days. Hats off and best of luck

[@gayatripitlawar740]

L

[@mamadusty1111]

Endocrinologists don’t watch stuff like this 😂 If you really are an endocrinologist and you’re actually interested in detailed understanding of how the human body functions 🧐I am pleasantly surprised. I thought “Endocrinology” translates to “The END of ology” the end of the study of something 🤓I know it really means “within” “internal” or “inside” study 👀🫣but most endocrinologists seem to imagine that THAT means they just learn everything from within themselves. That’s just what I think bcuz they don’t ask questions, have the least curiosity about what the patient is experiencing that I’ve ever witnessed and they get annoyed with external sources of information (ie: their stupid patients telling them ANYTHING) 😂😂🤣😅

[@ahmadalkaabneh7475]

i really love this guy so much he just delivers the information in the best way possible, the video is 30 minutes long and it felt like couple of minutes. keep up the good work.

[@lalylaly27]

Same! A long video gone by so fast that i was kinda sad when it was over

[@karinacdelgado7495]

Amazing! I've been a Nurse for 14 years and have now decided to return to school to get my BSN at the age of 40! This video is extremely helpful, just wish I would have found you 2 months ago! :)

[@chitranjankumarsharma5811]

Hello

[@okoyefavour6004]

Hello from Nigeria… it’s my first year in med school and it’s 2 weeks to write our exams and by just watching this video 3 times I can understand the whole process… thank you Ninja❤

[@marinabattaglia2636]

You have no idea the impact you have on everyone watching you! Your passion is contagious! Seriously, my heart feels happy when I watch your lectures. Thank you!

[@jaquesfrancais3030]

In case you are wondering, HOW the Estrogen feedback on the pituritary changes from negative to positive in the late follicular stage. It's because the accumulating Estrogen actually increases the GNRH sensivity of the gonadotrophs. Therefore the gonadotrophs release LH excessively and cause the LH surge.

[@manalmuneeftamer8846]

Ive had this question in my mind for so long..thank you😄

[@noble-quran_hadith]

Since GnRH neurons do not have oestrogen receptors (ERa), oestrogen bind on to receptors that are on the Kisspeptin neurons in the hypothalamus, in which they activate GnRH neurons through GPR54. This indirect mechanism allows us to understand why high levels of oestrogen coming from the dominant follicle can increase the activity of GnRH which in turn increase the secretion of LH --> Ovulation. However, in the 7th day of the follicle phase, the oestrogen inhibit the secretion of FSH so that only one follicle will grow to be the dominant one under the stimulation of low levels of FSH (due to the inhibition). We can say that high oestrogen levels have an indirect positive feedback on the GnRH neurons through KIsspeptin, which in turn increased LH secretion, but the negative feedback mechanism for inhibiting FSH during mid follicular phase i couldn't understand. Maybe someone would.

[@manalmuneeftamer8846]

@@noble-quran_hadith the same growing follicle that secretes Oestrogen secretes Inhibin hormone which inturn inhibit secrerton of FSH.

[@vanessamumu1968]

May I ask, how the estrogen goes up again in late follicular stage after its production drops due to inhibition of LH and FSH by earlier high level of estrogen?

[@yahyamuhamad9720]

Estrogen levels continue to rise as the follicle develops. Progesterone eventually begin to rise as well. Up to a certain point, the estrogen being produced exerts negative feedback on both GnRH and gonadotropin secretion. Around the 14th day of the cycle, the anterior pituitary abruptly changes its response to the persistently high estrogen levels. Rather than suppressing gonadotropin release, the estrogen now has a positive feedback effect. The reasons for this switch are still not clear. The switch to positive feedback provokes a steep surge in LH, and to a lesser degree FSH. High LH levels in turn initiates the process of ovulation, whereby the follicle ruptures and egg is released. After ovulation, the follicle collapses and the cells within it transform. This new structure is called the corpus luteum. The luteal cells produce more progesterone than estrogen, so blood levels of progesterone rise higher than estrogen levels after ovulation. The corpus luteum only remains viable for about 14 days, after which both estrogen and progesterone levels taper off. The declining levels of estrogen remove the negative feedback on GnRH and FSH production, allowing the cycle to begin over again.

[@carolinesapp1753]

don't understand why professors cant do this your videos have been so helpful!!

[@muthukrishnan7488]

S absolutely 💯

[@druwrollings2134]

I’ve never seen a better educational video in my life. You’re the man!

[@amyvalli2347]

Your lectures have never disappointed me! You have been my best online tutor so far. Without your insightful lectures, I would not to get thru my anatomy class with a good grade. I am truly appreciate your time and dedication in sharing your knowledge with others.

[@Jenna888s]

I bet professors around the world are watching this to learn what they don't so they can teach more accurately. But the students who really want to do well as what teachers don't quite get, will just watch this a bust through with an A. You're under-rated. I hope KZbin is paying you lots for this successful postings! You guys are awesome. Making it happen better than most and loving it too! I really like the episode on the immune system where you went into detail on the 3C process.....stellar. I consult a handful of anatomy videos for my learning....this is on the top. Thanks for making anatomy, physiology FUN and EASY!

[@chelseafuentez8103]

My goodness you are amazing at teaching! Honestly, you were engaging, made it easy to understand and keep up. I would take your class in a heartbeat. Thank you for these videos!!

[@joeymoe343]

It takes a true genius to simplify the complexity of these topics. Thank you, you LITRALI saved my (stud.med.) life - Chris Traeger

[@missswatimahapatra]

you're the best. who needs professors when you explain it so thoroughly! I'll be sure to donate when i'm not a student anymore :)

[@user-zh8bk2gf2n]

This is quality, the visual aspect combined with the clear descriptions is the perfect combination, lots of information that is being put into a simplistic yet effective story. well done and thank you.

[@tabathabillings3969]

THE fact this man learned this and is teaching us more than our teachers or parents have makes me cry. This dude is fantastic

[@sahalismacilomar8568]

I'm a medical student. certainly, this channel is better than my university. My classmates ask me always: where did you get this huge information? definitely, I say to them " Ninja Nerd channel is the best university than universities in whole world!" I would like to appreciate you for your great work. you deserve my university's fee.

[@nieraguna7259]

I really love your work and the way you explain the stuff !!! I can re-read the same chapter 30 times and will still not get it, watching you explain it with so much enthusiasm makes my day and keeps me wide awake to learn more, I actually had tears in my eyes when I finally understood it and it all just made sense !! Thank you so so so much. You are simply great and I just cant thank you enough. And for the record, this is my very first comment on KZbin, because you guys deserve it. God bless you !

[@mazrajauhar1950]

i never understood this when my class teacher explained it to me.. but your explanation was awesome.. i understood eachand everything... my dream is to become a gynecologist..hope this really helps me in future.. may god bless you brother.. to increase your knowledge more

[@m.n.6147]

I was so confused when I was reading Embryology from the textbooks but after watching your videos and observing the huge effort and dedication you've been putting into making them and making such complex concepts of medicine really much understandable I have nothing to say except they I wish you the best in your life and carrier. God bless you. Thank's a ton.

[@lauralupu4252]

This is so easy to understand compared to the books from school. Thank you so much for your detailed explinations. It really helped a lot. Great job and keep doing these amazing lessons!

[@aryanaik2943]

He explained this sooooo nicely.. I would never forget the process and a massive thankyou.. a big part of my test concept got cleared.. So understandable! Thankyou once again and I am highly grateful!! ❤

[@mateussilvaviyuela8953]

I’m doctor from Brazil and I want to congratulate you, Zach Murphy, for your amazing job! Your passion for teaching is crossing the oceans! Christ bless you!

[@yashvipatel4795]

The way you explain, no one can beat that. Amazing!! Things were not this clear to me before I saw the video.

[@Kluttzv]

I’m serious but all of your videos have allowed me to get an A on every exam of A&P II. Thank you!

[@NinjaNerdOfficial]

Great job! - TG

[@timj5706]

Zach, thank you for doing what you do, man! This is beyond helpful material (not just this video, your entire catalog!)

[@markmegaly1626]

Absolute legend! I've never heard anyone explain this so thoroughly. First the first time I can actually say I understand this well enough to be able to explain it back to someone and fully comprehend it. Thank you so much!

[@freeman8857]

Such an intelligent human being, your facial expressions and the quirky way you say things sometimes, hilarious. Love it. 👍

[@mlle.antoinette4515]

You don't even know how much you are helping me, I feel so angry because I can't never focus on what my teacher are saying but with you it's so different, I can watch you all day and understand and focus on what you are saying, THANK YOU SO MUCH. I don't have much but I will support you on Patreon! Thank you again

[@nilesluiz-]

yesssss, you're awesome man, watching yours videos from Brazil, recommending it to all my friends, thank you very much for your job, a big hug!

[@bethanytowne2970]

My favorite part was the fimbriae making gnarly waves scooting the little oocyte... super helpful video, really makes clear the roles of the hormones at different phases, thanks!

[@flynn886]

I absolutely love your videos man. the way you present complex systems information is the most coherent ive ever seen. I also love that you are willing to give them out for free so that poor medical students such as myself can use them. Thank you for being you. Love from australia

[@dianareyes7213]

I strive to one day be able to express myself as amazingly as you do when teaching all about anatomy & physiology. Thank you so much for delivering information so easily and clearly. Whenever I'm stuck on material I always come to my Ninja Nerd instructor online and easily understand everything

[@herojabar2686]

Hhhh at first i was just like “ it’s too long,who will be looking at such a long video ”,, but now I’ll confidently say it was the best really👍🏻👍🏻👍🏻many many thanks for your amazing explanation ☺️

[@melzsmilez4928]

My first thoughts as well... However I'm so glad I watched it through! Extremely helpful and informational!!!

[@lalylaly27]

Omg same here and i was actually kinda sad when the video ended

[@offrednatalie7887]

Same, i used to skip his videos and now he is like the only one i watch! So worth it

[@zucchenna]

Studying for MCAT and I made such a good decision of watching his videos to understand biology concept, its just makes you feel so confident and actually understand what is going on!!! I wish he made more MCAT focused videos as well!

[@Ghulam-Nizamani]

Ap ka slection howa ? I mean ka ap na MCAT clear kia?

[@mayeshasama6158]

5 mins into this and I realized that this is exactly what I needed all this time.. thank you so much, sir..

[@musicmediaoutlets123]

This is better than binging Netflix to be honest.... love these videos!!

[@chibuogwuijeoma655]

I am a lecturer and am grateful to have encountered you. You are an inspiration and my mentor in giving engaging lectures. Keep up the great work. Thanks a lot Zach.

[@janellbartzatt1178]

I'm a midwifery student and this video was what made the hormonal cycle click. This is so great, I shared with my fellow midwifery students to learn this. You did an amazing job of explaining everything and tie it all together. Thank you!

[@ifeomaobi7731]

Thank you sooo much, your videos are the very best I've come across so far..... I do hope you continue to grow and reach out to many cause there's not a lot of lectures who teach like you do.

[@quilton1857]

I’ve watched a lot of these and liked them and you guys are by far the best! Where has this been all my life?!

[@shivabayat8715]

You are an amazing teacher. I NEVER had seen such a detailed and accurate explanation. THANK YOU SO MUCH.

[@camy563]

Super detailed, clear and made easy, thank you for making such powerful explanatory videos!

[@chimichuro]

amazing video! i have a really short attention span so the way you speak and your color-coded drawings really help me understand the topic.

[@ashishpriyadarshi6636]

Awesome stuff,guys!What confused me till now has become crystal clear.Can’t thanks enough.👌🏻🙏🏼

[@anggib8645]

thank you so much for your videos, im keeping up with your videos as a substitute of some lectures i dont quite understand, thank you for your great work man! youre helping us so much

[@chloryngan]

Thank you so much for the amazing lecture. I am on the TTC journey. Learning how my body works, I am becoming more grateful and patient with my miraculous body. Thank you!!

[@Priscilla.09]

I love how you speak and how passionate you are about science. It reminds me of myself.

[@federicafegatelli7394]

Thank you for your effort!! Loving these videos, they are helping me so much preparing my exams in medicine

[@oanacrisan503]

The best video on this topic that I've seen so far. Thank you!

[@younismazin802]

I have just found the PERFECT channel. you are one of the BEST in explaining the processes that happen in our body. thank you very much👏👏👏

[@marysartworld229]

Wow! I am a first year MBBS student and was not able to understand embryology but you are the legend who helped me to understand each and every word . I take your lectures of every subject and study from your lectures . Thank You so much sir . Your new subscriber ❤️

[@medicos4399]

Awesome...no words to praise your hard work...No, not a single teacher in my area can explain this cycle so beautifully as you have explained... love from India❤️❤️

[@louiss.6775]

I donated 5$ it's a little contribution for the amazing work you do for us !!! Thank you !!! you explain very clearly

[@lauraps2104]

That's the best physiology class I've seen. You rock man

[@ela5720]

It s been a while since I stumbled across an old ninja nerd video. Zach had such a cute baby face and baby voice😭

[@vtyvxv]

you explain the whole thing much better than my lecturer! Thank you, this really help me a lot.

[@pundrikchaubey9274]

Firstly thought that the video is very time consuming but this person so good in this that every body will understand this very very well.. Thank u very much sir..Great lecture..😮😮

[@Nadya5]

most of the videos that I have seen on this channel are long, but he explains everything in such a way that my brain can understand!

[@PeakGrace]

Your explanations make every topic both understandable and interesting! Thank you!!!

[@hiraisani5243]

WHY ARE YOU SO UNDERRATED!!! You are amazing

[@faisalmahmud5307]

Not anymore

[@sidneywestcomb2994]

Well he is a ninja

[@bhavya6026]

Why don't we have him in our medical schools 😢

[@faisalmahmud5307]

@@bhavya6026 can't afford him he is priceless

[@emmafoote1664]

Thank you! This video is so great, it makes complex concepts super easy to understand.

[@zuzanka3rozinka]

You are the best, really, saving my life at med school

[@imanchere8339]

May Allah open all the roads for you I have lot of informations but I can't gather them but one and only one Dr zachary can clear my brain and I can match histology physiology all the items just in one video

[@saba4079]

An explicit and eloquent lecture it was. Thank you sooo much for your dedication 🙏 👏

[@TheprettyNurse001]

In 2024 !!after 4yrs Dr Zach video is still saving lives !!! Thank you so much ❤

[@denisse8456]

Wow! Your are an amazing teacher! I came in wanting to learn the basics but you taught me much more and the reasons as to why it’s occurring. I’m mind blown. It’s the first time I’ve watched a video of yours. Thank you.

[@daisyflower2746]

Thank you and love you is all I can say to you guys You’re literally my medschool heros ❤❤

[@MrABHIJIT1966]

Thank you so much for explaining this topic in such a beautiful way! 👏👏 You made everything so easy & crystal clear to understand. 🙌🙌

[@alecmegherdijian2513]

maaaaaaaaan this is crazy, sooo much information, with a so in love teacher with the subject, amazing video mannn FOR REAL

[@soufianeelkarmoudi3415]

Hey man, just wanted to say you're amazing. Thank you and keep going your content rocks !

[@emilycurtin1717]

This channel has saved me tears and so much sleep. Thank you, thank you, thank you. You have a GIFT for teaching

[@Celine-Ainee07]

Just speechless🥺🥺 All I can say, may God bless the good works of your hands🥺❤❤ You're really helping many people globally to enjoy the most complicated courses in a matter of minutes, with clear and understandable contents. Much love❤❤❤

[@LifeistheBubbles]

Hi- this was the first video I watched of yours in my undergrad endocrinology class. I feel in love with hormones and repro. Now I am in my first year of medical school watching it again for review- thank you for making these and helping us science nerds understand and appreciate the complexity of the human body

[@salihatauqeer1055]

Love the fact that you get so mesmerized by your own creation and feel the awe when you know it is being explained so so properly.

[@asoom_05]

I was watching this video and watching you for the first time last year for my biology class of the last year in high school.. Now, I'm watching this again..but for my lecture in first year of medicine so, thanks a lot

[@alienflower2895]

thank you so much . you helped so much i searched for other 100 videos but were ineffective thank you again i honestly used to dread the thought about understanding this part but now that i did understand it clearly im really amazed thanks again ❤️❤️

[@babyrose9529]

You are sooo good the only one i understand keep going even thought i study in french there isn't many vids in french and your explanation helps me understand my lessons in mèdecine better

[@ghostofsparta196]

Your have a way of explaining these complex pathways so easily. Thanks for the video!

[@BeCa789]

Hey! just wanted to add something to your amazing explanation. The second stage of the ovulation cycle (Luteal phase) is actually ALWAYS 14 days.. it's the follicular phase that changes from every person to person or cycle to cycle, so it makes the cycle longer or shorter. keep up the great work! love your videos!

[@cellychillmode]

14 days is average, but it's not fixed. Luteal phase length can range from about 11-16 days.

[@2YKSS2N]

thank you for sticking through the whole process of making this video

[@sonachandrasekaran414]

Amazedddd by your lecture sir... Perfectly understood the endocrinology of female reproductive cycle

[@ryeh3548]

I simply LOVE YOU!!!!!! Straight forward, informative, and engaging! seriously you have a GIFT for TEACHING. THANK YOU!!!!

[@michellef520]

You are teaching us generation x things we didn't learn that we should have. Thank you so much for the work you've put in to get here to guide us.

[@jenniferstephen4103]

You are ans AMAZING teacher!!!!!!! You make all of the information connect and make sense - Thank you for producing theses videos :)

[@vivekbalakrishnan1662]

thank you for all your guidance Zach. I aspire to be as passionate as you in this field over the years. lots of love from Malaysia ❤

[@thefenerbahcesk4156]

Great video. I'm taking endocrinology and a cardiovascular pathology class right now, and you're videos are saving me for both classes. However, for this video, it would have been helpful to include a timeline with hormone levels.

[@rachelrees8491]

You sir are brilliant. Thank you for breaking everything down so well. Loving your videos

[@julialee2962]

you just topped my professor with your explanations. im understanding this MUCH better thank you

[@phinahB]

I'm here to learn about our bodies and their complex mechanism. You are such a wonderful teacher. All those scientific terms were easily understood because your mode of teaching is super good. Thank you.

[@VyvienneEaux]

Wow. I've been wracking my brain trying to piece this all together with all the nitty gritty details, only to find that this video bears most of the answers/details my other resources left out.

[@hemenwebeshet2934]

Really like your videos. Short and very precise. One thing i would want to suggest as a comment is if you could upload a picture of the diagrams you draw during the video. That would really helpful to recap everything at the end. Thanks a lot again for the amazing videos.

[@chipindanimuweme4109]

you have really helped me so much even things that seemed to be too difficult for me but after watching your video its a thing of the past

[@erikb6576]

I have to say - these markers you all use are incredible. When you started filling in the follicular fluid/hyaluronic acid at 11:10 - oh man, that was incredible! Also, fantastic channel. Thanks for all the hard work you do

[@vln1985]

I am wondering how you clearly and undoubtfully explained all the things... you are great yourself.... no words more.. 👏👏👏

[@abdullahibrahim531]

ur amazing ninja.................i pray u get more in life,what ever u wish u get more success.... ur amazing

[@shanthirajendran8946]

You're the best teacher I have ever seen

[@claudiaferreira9622]

Great video and content! Love his drawings and visual teaching - soooo good indeed!!! Thank you 🙏

[@SumayyaAbdulaziz]

😭❤️❤️❤️I really appreciate what u r doing, not to insult most of science classes’ instructors but they have to take their seats in the classrooms listening to ur lectures with their students and learn what real lectures look like 😂especially those who come to the class and read the slides to their students then leave 🤬

[@tibayounis9977]

Exactly,and that what happend in our collage the doctor leave and u don't understand the purpose from lecture he only say are you understand we say yeah but actually no one get the idea😕 Ninja really forfit alot of respect.

[@SumayyaAbdulaziz]

teba younis I believe so😍

[@khadijahsaleem6775]

😣👍