Embryology of the Female & Male Reproductive System II (Easy to Understand)
HTML-код
- Опубликовано: 13 июл 2024
- The development of the external reproductive system (male, female, and variations) explained in 15 minutes.
If you are completely new to embryology and you want to understand it quickly, this should be the first video you watch:
- • Introduction to Embryo...
--------------------------------
Recommended Text
--------------------------------
Easy Embryology is a book that is dedicated to the simplification of embryology. It is available at drminass.com/product/easyembr.... Contact Dr. Minass for more information.
----------------------------------------
Interact With Dr. Minass!
----------------------------------------
Website - www.drminass.com
Email - info@drminass.com
Patreon - / drminass
Facebook - / m1na55
Instagram - @m1.nass
Post - Address to:
Minass
Parcel Locker 10106 04448
59 Penshurst Street
Willoughby, NSW
Australia 2068
------------------------------------------------------------------------
SUMMARY OF THE VIDEO FOR YOUR NOTES
------------------------------------------------------------------------
1. The indifferent stage
- In week 3 of development, mesenchyme cells coming from the primitive streak migrate to the region around the cloacal membrane forming cloacal folds
- Superiorly to this membrane, the folds will fuse to form the genital tubercle
- Inferiorly to the folds, they will form the urethral folds and the anal folds
- Genital swellings appear lateral to the urethral folds
- Sex cannot be determined until week 7
2. Male external genitalia development
- Testosterone signals the genital tubercle to grow rapidly becoming the phallus. This elongation will pull the urethral folds with it and by week 12 the folds fuse and contain a lumen called the urethra
- Ectoderm cells invade the urethra keeping it solid at the distal end, but later the urethra will canalise to be a patent lumen
- The genital swellings are the scrotal swellings, they move inferiorly.
- In the male the urethral folds will fuse
- Hypospadias are the result of an incomplete fusion of the urethral folds
3. Female external genitalia development
- Oestrogen enables the development of the external genitalia in females.
- The genital tubercle will become the clitoris
- The urethral folds develop into the labia minora
- The genital swellings will become the labia majora
4. Variations
- Ambiguous genitalia
- ?Hermaphrodites
- Ovotestes - both ovarian and testicular tissue present. 70% of the time the genitalia are ambiguous or mostly female
- Congenital adrenal hyperplasia (CAH): increased adrenocorticotropic hormone (ATCH) and reduced steroid formation
- Androgen insensitivity syndrome (AIS) - males but lack of either androgen receptors, or unable to respond to dihydrotestosterone (DHT)
- Complete androgen insensitivity syndorme (CAIS) - vagina is present but short, testes found in inguinal or labial regions but spermatogenesis does not occur. (increased risk of testicular cancer/malignancy)
- 5-alpha-reductase deficiency - unable to convert testosterone to DHT
- Klinefelter syndrome
- Swyer syndrome (gonadal dysgenesis)
- Turner syndrome
Easy Embryology (written by me) is the BEST textbook to use if you're infuriated with embryology. Get 20% off with code EASY20
Buy here -> drminass.com/product/easyembryology
I passed embryology because of you, thank you very much. You are godsent!
Legend
My ever first comment on a youtube video. Perfectly timed and strict to the main concept. Really made it clear. thumbs up for you Sir....
My first time to see embryology that simplicity, thanks doc.
Turner Syndrome occurs in females missing the second X sex chromosome, 45,X. There are also several different karyotype mosaics. These individuals do not usually go through puberty because of the accelerated loss of oocytes during gestation. Anomalies include small stature, a webbed neck, and lack of periods.
DM me your email for the whiteboard 👌
@@minass DM'd on instagram
Your lectures are very learner-friendly. I appreciate how you recite what's been said in a different way to enforce the concept being taught. Many lecturers could learn a thing or two from your videos!
Thanks for watching Matthew
great summary to understand embryology in medschool!
just wanted to say thank you for everything you do Dr. Minass!!
You're very welcome
Excellent and so helpful for my studies!
Amazing video as always ! Keep making more .... Thanks !
Sure will
Thank you so much, you put a lot of effort into your videos to make them as easy as possible and I’m so grateful for that.
Ay bo natwta mn🤣😭
@@nihaya5642 ay to ta esta natwtwa kesham la session 1 haya 😢
@@baharhussein9087 kura chon bas say videokan ninjam krd🤣🤣
@@nihaya5642 katy mn awa nabw hahaha
You saved me today
More power to you.
Great upload !! Great gainz also !
Hahaha
Perfect ❤
most effective lecture for embryology.but i cant find any books to follow you.please do a comment and tell me which books do you follow.
Very Helpful! Thank you so much! Was wondering if you could please do a video on the development of the body cavities? Would be so grateful!!
I have the thoracic cavity up now
Happy to find this video thank you
You're welcome
Your lectures are a great standard for studying embryology..
Would you please make videos on embryology covering other topics too.. It'd be a great pleasure!
Yes always more topics coming
Thank you very MUCH FOR SIMPLICITY DR.
From Tanzania,Dodoma
Thanks for watching!
Best Best Best.
Thank you!
Welcome 👍
Thank you so much!
My pleasure! Thanks for watching Tania
besttttt
Nice
Great video !! Very interesting
Quickly tip: maybe you can introduce terms like coronal / transverse section and anterior / posterior view so its easier for you to explain what wer’re looking at on the board.
Yes it would be easier for me, but explaining it the way I do helps people visualise how each of the images look in their mind. Anterior, coronal, rostral, dorsal, etc are words that people have to interpret for themselves, but by actually acting out how to visualise the images it makes it so much easier for the beginners!
Dr. Minass ahh yes i get that it makes it easier for beginners to explain it in that way! nevertheless your videos really helped me, thank you so much for your hard work :)
Your videos are great sir.... i request you to make a video for Ear embryology
Sure I will
Turner Syndrome:
- In babies lymphatic swelling
-short posture (deficiency of SHOX expression)
-female phenotype
- no intelectual disability
-wide neck with excess of skin
-no period and poorly developed secondary sexual features
-45X, mosaic of 45X/46XX/47XXY or 45X/46XY/47XXY, or X chromosome abnormalities (rings, isochromosomes)
-when Y chromosome mosaic or remnant is present- increased risk od gonadoblastoma/dysgerminoma
Sir pls make more videos more more.. We need u.
Will do
May God bless you! I easily understand it. bye textbooks.. kidding!
Dr. Minass
When you say 8 weeks here, is that 8 week from last menstrual period or 8 weeks from fertilization?
Thank you so much
In my class it is usually from the "creation" of the embryo, so from fertilization. I hope it helped.
Thank you
You're welcome
There is a Science Fiction series known as the culture where advanced medical science allows mature adults to change biological sex at will. Do you think something like that may be possible with advanced genetics / genomics? I’m watching this to get an idea of how that may work… cheers.
Dunno how I got here but I'm not disappointed
Hehe great to hear
Could you please teach all my other subjects as well?
Sure
thanks for mentioning the possibility of trans*persons as well. Nice video :)!
We tend to complicate things, why should we not follow what we have been given by nature instead ?
@@jacobbryan4875 beacause nature gives us a variety of things. if you identify as a straight male, thats perfectly fine but if someone identifies as a trans*person or somebody else thats perfectly fine too.
Also that is not making things complicated, it is aknowledging the nature as it is.
I have recently seen 3 d representations of the clitorus, reminded me of a wishbone and included external and internal components. Developmentally how does this happen?
I don't understand the question, sorry
Sir 💜
❤️
Pls increase uploading speed
Yes sir
Sorry sir but you looking like Johnny ****😂😂
Which one? The astronaut, engineer, or teacher?