FSH & LH AND THE REGULATION OF THE REPRODUCTIVE ORGANS by Professor Fink

In this video lecture, Professor Fink describes the Regulation of the Reproductive Organs (Ovaries & Testes) by the Gonadotropic Hormones (Follicle Stimulating Hormone; FSH & Luteinizing Hormone (LH). Included in the detailed discussion is the Negative Feedback Loop involved in regulating circulating plasma Estrogen, Progesterone in the Female & Testosterone levels in the Male. The Menstrual Cycle is reviewed and the efficacy of Birth Control Pills (Oral Contraceptives) are explained by a Negative Feedback on the Pituitary Gland. A contrast is made between the continuous release of FSH & LH in the male versus a cyclical release of FSH & LH in the female. Reference is made to the GnRH, Pre-Ovulatory Phase and Post-Ovulatory Phase, Ovarian Follices, follicle cells, Ovulation, Corpus Luteum, Inhibin, Spermatogenesis, and Human Chorionic Gonadotropin (HCG).
Check-out professor fink's web-site or additional resources in Biology, Anatomy, Physiology & Pharmacology: www.professorfink.com
e-Books of the PHYSIOLOGY Lecture Outline by Professor Fink can be
purchased from the WLAC Bookstore at:
wlac.redshelf.com/ .
[e-Books provide 100% off-line reading and 20% printing]
“Hard Copy” Lecture Outlines can be purchased from the
WLAC Bookstore at:
onlinestore.wlac.edu/fink.asp

[@jaipalreddybuchireddy4505]

amazing lecture, every medical student should listen this

[@Gasmanz]

Im studying for step 1 and until watching this video I never could keep straight what LH and FSH do. Professor Fink has quite the gift for teaching.

[@KatTheKatTheKat]

You are a great teacher, and as a fellow community college professor, I can say there are many like you who are excellent at their work! It's a little known secret, but it's true - community college is where to go if you want instructors who love their subjects and love TEACHING as well! Thank you for this clear and informative video.

[@professorfink]

+Katherine Greco Thank you for your kind words, Katherine. And I agree with you about community colleges.

[@Ravneetu]

I could not agree more! I went to University of California, Davis and I feel like I learned nothing except how to go from one test to next. I am now taking Anatomy & Physiology at a local community college and the professor is a veterinarian and she is the best professor I have ever had in my life! Thank you for being a professor that actually teaches and is not in it just to do research.

[@paulmeo]

Thankyou from an Australian medical student

[@judithjara7584]

You are amazing! You deliver the information in a easy way to understand. Straight, clear, and fun. Ty so much!

[@carolinamariacorreia6436]

Thank you professor . You help me to be more confident in helping the women in rural place.

[@samanthasobers4695]

I wish professors actually TEACH as you do instead of just reading off a power point that is also uploaded online. You can tell that you were well organized with your lecture and was aware of what you were saying and where you were going with it at all times. Thank you so much for making this video.

[@MrMAK951]

prof fink,im a medical student and i want to thank you so much for all the things you been doing all that long time

[@enderasu]

Make room for me Professor I am coming for your spring 2015 section 1724 ! Can you imagine, community college having such a great professor! You R amazing professor Fink.

[@slyvesterlaureen6323]

Best Endocrinology lecture I've ever received .Thank you sir

[@Franxiquito]

You are an AMAZING lecturer! Thank you for this video!

[@anamaria-ym5gg]

Dear professor Fink, I really enjoyed your lecture! I am a fresh ob/gyn rezident from Romania and i am looking forward new lectures. Thanks for your wonderful video!

[@silviavillavicencio1866]

you are the best professor ever,excelenteeeee!!!

[@brandofelipedomingueznavar517]

Pretty good video, and so helpful. Thanks a lot Professor Fink

[@juice28rsx]

WOW well explained and very easy to follow THANK YOU!!

[@BluntTraumaVids]

Brilliant video. Educators should strive to produce lectures such as this

[@304kristen]

I wish my teacher was this good.

[@khamikos1]

Μr Fink you are a great and perfect teacher. so lucky are your students.may God bless you

[@kitkat586]

Thank you, this is so helpful. I'm a medical student and this was good review before my endocrine exam tomorrow.

[@wongsc427]

Really thank you, Professor Fink!!!!

[@ferricyanide8112]

Thank you, Professor Fink!!!

[@rajadhas3355]

Professor really you did a great explanation.

[@brianabarrios2451]

Thankyou soo much for this video! LIFESAVER

[@xDomglmao]

All I can say is: Thank you very much!

[@badrel8539]

Amazing work , many thanks from Morocco :D

[@fantastic9826]

Badr El and from Saudi Arabia!

[@nicoleb2604]

I wish my professor would teach this good, now I actually understand the material, great job!!

[@salimulubuva8515]

Thanks professor. You realy made me to think my medical cause easy....

[@AbdulHadi-mz8no]

Amazing lectureeeee

[@jeanettemarino9797]

great video!!

[@wchi8391]

I wish my professor is like you.

[@hatimwasswa9357]

I wish prof teach me one day,because you are my best teacher, thanx for your service

[@liletmaegonzaga816]

Very informative video. 👍👍👍

[@girlpower7329]

Awesome, thank you :)

[@singarapuravi1]

Thanks for great lecture sir

[@dragonfly5665q]

Awesome !!

[@buzzalovers2003]

i realy like this lecture......Just got some clear concept about the topic.....Tq Prof.

[@zahra-xd3qo]

thank you sooo much . You're great

[@fatimaabdelnabi405]

wonderful !!!!!

[@lawrencesoneka2971]

Thank you sir.

[@evaturcios5749]

Thank you very helpful

[@wassimabdou7649]

Prof Fink, thank you for this amazing video. my gyne exam will be on the 31st of January. will let you know how it goes ? :) How are you doing ?

[@Power2ThePeopleZ]

Can you please post your notes used during the video so we too can follow ur notes and take additional notes on them

[@OriginalRipndip]

I'm with you professor. Your gift for teaching is my present how would you say one should picture the information or categorize to memorize?

[@Memory_maker07]

Best ever

[@osaidayyadi8091]

Love you so much ❤️

[@mgsicodowska204]

in what part of the ovarie the turgency comes up, its in the cycle ?

[@aidrousyusuf5735]

Hatts off thanks

[@fahadfahadfahad123]

thank you professor

[@lee-annesanglay2361]

sir, what will happen to the menstrual cycle of those who have implants?

[@theenlightenedsoul4209]

Hello fink I am 26 and I have normal testostorene level and normal fsh but slightly increased level of LH .what does that mean

[@MrMAK951]

but i want to ask you about inhibin and controling spermatogenesis according to guyton 12th edition it said spermatogenesis is undercontrol of inhibin hormone when the sperm increases would enhances the sartoli cells to secret it.

[@pikkah8145]

im trying to reactivate puberty. is there any natural way to get your body to do it all over again?

[@cu99460]

GnRH will that cause the release of both FSH and LH? because then how is FSH released for the first 2wks without LH being released?

[@izzatsyahiran9436]

prof u have an email?oh its will be good for me to ask something that i dont understand about OnG. btw thank you very excellent and easy explaination

[@jeremyguoyizheng]

thank you from china

[@RichardsWorld]

Lots of good info. But in men the negative feedback loop does stop FSH release. Like he said the pituitary gland in males sends LH and FSH. Also, internal testosterone is needed with the testicles to support sperm development. Men on long term testosterone replacement therapy have very low sperm count. This is sometimes fixed with HCG and Clomid therapy. HMG and sometimes Nolvadex is added to HCG and Cloimd therapy.

[@professorfink]

You are correct! Because of both the complexity of physiology and time constraints, I commonly simplify the information, or leave out some additional factors. Thank You for your contribution. -- professor fink

[@pavlosstag9625]

Hello professor today i had my physiology final on kidney, endocrine system and nervous system and i passed because of the videos above thank you very much :) I still have a question though, why is it possible for men to have a permanent problem producing testosterone when they provide testosterone from an outer source, while woman wont have any problems producing again estrogen and progesterone after taking birth control pills to stabilize their menstrual cycle?

[@Vlad-gv6dz]

Who said women wont have any problems?...

[@mup1537]

within 3:30 i had the answers i was looking for

[@katiie7]

If you’re supplementing with progesterone would it cause the pituitary gland to also shut down enabling it to make other hormones or just that one?

[@professorfink]

Based on the "Negative Feedback" Principle, taking Progesterone will inhibit the Pituitary from releasing LH, which will reduce the secretion of progesterone by the ovaries.

[@aniscarbajal6698]

You are an outstanding professor! I absolutely love your teaching style. Related to this topic, I would like to know a few more things. I have been trying to conceive for a about a year, and was not successful at first because my husband was diagnosed with low testosterone, for which he had treatment: he was put on HCG injections, and testosterone injections. Now I was recently diagnosed with low estrogen and testosterone level, and a slight elevated prolactin level. I had an MRI of the brain which turned out normal. My doctor put me on HCG injections three times a week for three months, DHEA supplement daily, and progesterone cream to start using after day 14 of menstrual cycle. Does this treatment sound appropriate for my condition? I am afraid of using HCG injections all months long, will this affect a baby in case a became pregnant? Please help me understand the concept behind this treatment approach. Thank you.

[@professorfink]

You should really consult with your doctor to help you better understand the clinical picture and the treatment. Regarding HCG, it has actions much like LH (in both males & females). So, in males, it stimulates testosterone production by the Testes (like LH does), and in females, it stimulates ovulation and the secretion of Progesterone by the follicle cells (of the Corpus Luteum). Without knowing the clinical details -- which your doctor does -- that's about my limit in my ability to explain your treatment. May God Bless You both with a New Year that brings your Hopes & Prayers to fruition. sincerely, professor fink

[@aniscarbajal6698]

Thank you for what you do professor. I appreciate your help. Happy new Year!

[@Hansel137]

Unfortunately, there are no translation into Spanish

[@mup1537]

do you have the same corpus luteum throughout an entire pregnancy?

[@Khaatana]

It eventually breaks down when the placenta forms.

[@vukiWorkout]

Yes, only the name is different. The first one is called corpus luteum menstruaticus and the second one is corpus luteum graviditatis.

[@aimeem7502]

You say the pill normalises the menstrual cycle. Ovulation occurs as part of a menstrual cycle, COCs shut ovulation down, so did you mean to say the pill can regulate a bleed?

[@professorfink]

Correct; the "uterine cycle" is normalized.

[@mohamadsadk7078]

What is the name of the book ??

[@professorfink]

e-Books of the PHYSIOLOGY Lecture Outline by Professor Fink can be purchased from the WLAC Bookstore at: wlac.redshelf.com/ . [e-Books provide 100% off-line reading and 20% printing]“Hard Copy” Lecture Outlines can be purchased from the WLAC Bookstore at: onlinestore.wlac.edu/fink.asp

[@vincentpineda2142]

Tangina mas natuto pa ako dito kaysa sa prof ko.

[@tugger]

can someone edit out his awful pops and claps they're gonna bust my headset jesus christ

[@ginacodding4135]

Great lecture. Way to gloss over that progesterone is not the same as progestin 🥴 big cringe.

[@professorfink]

Progestins are synthetic drugs that mimic most of the actions of natural progesterone (but with generally longer half-lives). (Progesterone & the synthetic progestins are collectively called "progestogens".)

[@ginacodding4135]

professorfink Right. It’s my understanding though that the benefits of progesterone such as helping cope with stress, mood balancing, cardiovascular health, protecting bone density, anti-inflammation, and many more, don’t occur with synthetic progestin.

[@gringoloco543]

Progestin is not Progesterone! Synthetic drugs don't work the same as endogenous hormones!!

[@professorfink]

You are correct that the synthetic drug progestin has both some similar actions to progesterone and some different actions to progesterone. This is mostly due to the specific Receptor Sites the two steroids act one. HOWEVER, most synthetic analogs of natural hormones and neurotransmitters -- indeed -- mimic the action of the natural hormone or neurotransmitter IF they act on the same Receptor Sites. See my Video-Lectures on Pharmacology: www.professorfink.com/PHARMACOLOGY___RESOURCES.html