The Menstrual Cycle | 3D Animation (2/2)

This 3D animation explains the hormonal changes during the menstrual cycle. The menstrual cycle begins with menstrual bleeding, marking the follicular phase’s first day. When the follicular phase begins, levels of estrogen and progesterone are low. As a result, the top layers of the uterus’s thickened lining break down and are shed, and menstrual bleeding occurs.

About this time, the pituitary gland starts sending follicle-stimulating hormone to your ovaries, stimulating the development of 5 to 20 follicles in the ovaries. Each follicle contains an immature egg and produces estrogen. One follicle will soon begin to grow faster than others. This is called the dominant follicle. As the follicle grows, the levels of estrogen in the blood rise significantly. This increase in estrogen begins to inhibit the secretion of the follicle-stimulating hormone. The fall in follicle-stimulating hormone allows smaller follicles to die off. They are, in effect, "starved" of follicle-stimulating hormone.

The increasing amount of estrogen in your body also ensures that the lining of your womb thickens with nutrients and blood. This is so that if you do get pregnant, the fertilized egg will have everything it needs to grow.

The ovulatory phase begins with a rise in the levels of luteinizing hormone and follicle-stimulating hormone. The surge in the luteinizing hormone triggers one of the most prominent follicles to pop open and release its egg, which heads into the fallopian tube and starts its journey toward the uterus. Ovulation usually occurs 16 to 32 hours after the beginning of the surge, around day 14 of the menstrual cycle.

During the luteal phase, the levels of the luteinizing hormone and follicle-stimulating hormone decrease. The ruptured follicle closes after releasing the egg and forms a corpus luteum, which produces estrogen and progesterone, which cause the lining of the uterus to thicken even more. If an egg is fertilized, progesterone supports early pregnancy. But if no fertilization occurs, the corpus luteum will break down between 9 and 11 days after ovulation. This results in a drop in estrogen and progesterone levels, bringing us back to the first stage of menstruation if no pregnancy has occurred.

Timecodes:
0:00 Menstrual Bleeding
0:07 Follicular Phase
0:36 Dominant Follicle
1:12 Ovulation
1:37 Luteal Phase
1:46 Corpus Luteum
0:54 Implantation
1:04 Next video

#Menstruation #Menstrualcycle #animation

[Panda]

Have been searching for videos to explain this whole Menstrual cycle and yours is by FAR the BEST - so easy to understand/ incredibly informative and so helpful it's animated (the others just skip steps/ too complex) - thank you, thank you!! :)

[hatoosy]

literally haven't understood the menstrual cycle for 2 years, and now I understood it in 2 min.

Absolutely fantastic content!

[studyheaven]

This video made me understand this in just 2 mins what our teacher couldn't explain in 2 hours. Now the whole cycle is imprinted in my brain. 😅 Outstanding animation, hats off to the creator for making such amazing content ❤😊👏🏻
Keep making more of these as they're so helpful 😀
Lots of love from students like me 💗😁

[chihungng]

OMG. It's amazing that you spent merely two and a half minutes to explain all the contents in a 2-hour lecture. I don't even need to look at the text to explain the hormonal changes during the whole cycle simply just because I watched this!

[Sophicx]

I’m studying for the MCAT and I’m reviewing different body systems! This really helped me create a visual for the menstrual cycle. You are awesome!

[armaanarora]

The good explanations can be found anywhere, but seldom does a student stumble upon such an effectively designed animation, which is enough in itself to have the cycle embedded in our memory. Hats off to the creators. Your effort is appreciated greatly!

[yessir]

having my graduation test in biology next week, this was by far the best and most understandable video, thank you!

[bangtanarmy]

I am in D Pharma 1ST year and this video helped me a lot to understand menstrual cycle. Thankyou 😊

[tranamsandhu]

I hope more people find this video like I did. You saved me!!!

[TMNT-HEARTSTEEL]

My teacher failed to explain me this cycle in 45 minutes but you did in just 2 minutes...you really deserve the best...thank you so much ❤❤❤❤

[GRANDMARSHAL]

Keep up the good work ! Helped me alot to visualise the cycle thanks

[uremcolo]

Very descriptive and informative, Thank you very much 💖

[ounlgmw]

thank you so much its so informative and i understand instantly, m thinking why lecturers during my days don't show us videos like this, they just kept explaining to us and we students still cannot understand well...

[sinistan]

so basically this happens because the inside assumes an egg may start growing but when it doesn't that protective layer is shed so a new one can start again otherwise it's used to protect the growing egg that becomes a baby

[reshamkhan-bkip]

Thank our zoology ma'am showed this video in our class and what an animation 💜💜

[jaimyjoy]

Thankyou for this wonderful video. It was super informative, beautifully explained and very helpful. Thank you again!!

[pm]

Thank you so much for this amazing video ❤️
Took screenshots to remember everything u told for long😊
Take care🌹

[prernakumari]

Thankyou for this beautiful animation 👍 it helped a lot to understand the topic 🥰

[lsousaxavier]

Best video I've found about the menstrual cycle

[penjahatgaming]

thanks for explanation your video really save my day