Feto-Placenta Circulation || Back to Basics || Dr. Shonali Chandra
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- čas přidán 24. 08. 2024
- In this video, we will answer how the fetus extracts oxygen from the maternal blood across the placental barrier. We will see how the fetal circulation is different from the adult circulation and how it changes soon after birth.
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Best teacher I love you Mam dr shahnaz from Lahore Pakistan
Such an easy informative video mam this video is beyond the words
Thnku mam
Fantastic video Madam! Simply loved it!
Thank you so much for this video!
You are so welcome!
Very very good demonstrations
Excellent demonstrations
All respect to you, Ma'am.
Please take classes for DNB or PG students also 🙏 🙏
Excellent lect maam....plzzz keep posting such lect
Nice Lacture mam 👍👍
i dont have words for you maam/wonderful presentation
Thank you
Mam plz take classes for post graduate residents
Thank you mam 🙏
tnxs my best teacher.I do have some question. what is the importance of shunting blood between the two atrium during fetal circulation????
Excellent video mam. Thanks alot.
excellent video
Helpful thanks a lot
After birth, all changes are happening due to closure of fetoplacental circulation but what is it that is closing this placental circulation itself ??(how does placenta know that it needs to stop now)
Thank you for asking this question.
The immediate closure of umbilical vessels after birth is mediated by smooth muscle contraction of the vessel walls, mediated by a combination of change in oxygen tension (brought about by breathing now) and mechanical stimuli (clamping of cord).
The initial inflation and oxygenation of lungs also stimulates the release of bradykinin from the lungs, responsible for functional closure of the ductus arteriosus.
Virtually instantaneously, the heart chambers then start to work in series, blood from RA reaches the RV and enters the pulmonary artery to lungs then back to LA. This increases the LA pressure, the RA pressure decreases (recall the decrease in pulmonary vascular resistance). This pressure difference causes the functional closure of the foramen ovale.
For Ref. Langman's Embryology 14th ed page 238.
@@medicinedecoded.
Thank you for your reply ma'am....
Lots of prayers & good wishes for you .
Thankyou so much for all those efforts that you put for us, All your lectures were awesome , unmatchable ,helped so much, and made my journey of gynae obs very easy in my finals. Crystal clear concepts you provide that no one else could do in a short time. Your teaching skills are amazing MashaAllah.
And thankyou for your kindness, compassion & selflessness always.
May Allah reward you immensely for that.
Please keep up the good work.
Best teacher ever.
May god's mercy & guidance be always with you!
❤️❤️❤️ veri3 naci
Mam 😘😘👍
Fertilization