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Yes, the superior vena cava (SVC) has a valve called the "eustachian valve" or "valve of the superior vena cava". However, it's important to note that this valve is not always present and is often rudimentary or absent in many people. The eustachian valve is a small, flap-like structure located at the junction of the SVC and the right atrium (RA). Its function is to prevent blood from flowing backwards from the RA into the SVC during certain phases of the cardiac cycle. However, the SVC is one of the few veins in the body that does not have a prominent valve like other veins. This is because the SVC is a high-pressure vein that drains directly into the RA, and the pressure gradient between the SVC and RA is relatively small. In contrast, the inferior vena cava (IVC), which drains into the RA from below, has a more prominent valve called the "eustachian valve" or "valve of the inferior vena cava". This valve is more developed and helps prevent blood from flowing backwards from the RA into the IVC. Let me know if you have any further questions!
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One of the best if not the best
Thank you!! Glad to hear!
Your job is invaluable.I'm glad to see such improvements in videos quality.Undoubdetly the best in youtube ;)
Thank you! That's so nice to hear =) I'm always trying to find ways to improve, so seeing people noticing makes me happy 🥳💪🏽
Ur explanation helps me a lot to overcome my doubts and get a clear picture of the topic thank you for ur work ☺️☺️
Really glad to hear!
@@TaimTalksMed Is there a way to get in touch with you
Thank you so much for the video. Helped immensely
Please keep uploading ❤️
Will do💪🏽😊
your work is blessed, thanks a lot!!
Nice 👍 bro your the best , am enjoy anatomy , on my first year with u , am from Tanzania keep going bro 🤝
Awesome to hear! Glad I can help out with these videos =) All the best with your studies!
Waiting soo long for this
Great video, thanks!
Great video! Thanks
You saved us mate :)
💪🏽😁
Thanks!
You're welcome!! =)
Very nice... 😀😀
Thanku❤
your videos are the best i've found so far. pleeease make one about inferior vena cava
Really glad to hear! Inferior Vena Cava coming up this Wednesday 🥳
Can we please get a portal vein system video?
Coming up in 2 weeks time🥳
best explanation.
Happy to hear! 😊
Awesome!
Thanks lot
Please make videos about embryology.
5-8 posterior intercostal veins drain into accessory hemiazygous vein not 4-7.
The 4th one drains into left superior intercostal vein
Clinical correlation?
Hello . Hope you are doing good .. what software are u using??
very well
Plz make a video on female reproductive system,...ur videos are so helpful for us... ❤️
Will do as soon as I'm done with veins! =)
man you made my day thank you ... i wish if you can make pdf version of this video
does Superior Vena Cava have valve?
Yes, the superior vena cava (SVC) has a valve called the "eustachian valve" or "valve of the superior vena cava". However, it's important to note that this valve is not always present and is often rudimentary or absent in many people.
The eustachian valve is a small, flap-like structure located at the junction of the SVC and the right atrium (RA). Its function is to prevent blood from flowing backwards from the RA into the SVC during certain phases of the cardiac cycle.
However, the SVC is one of the few veins in the body that does not have a prominent valve like other veins. This is because the SVC is a high-pressure vein that drains directly into the RA, and the pressure gradient between the SVC and RA is relatively small.
In contrast, the inferior vena cava (IVC), which drains into the RA from below, has a more prominent valve called the "eustachian valve" or "valve of the inferior vena cava". This valve is more developed and helps prevent blood from flowing backwards from the RA into the IVC.
Let me know if you have any further questions!
Thanks
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Thanks