Valves in the Veins

[@PantherJaguar]

Thank you for the video! It really helped me understand why veins have valves.

[@DrEldersAnatomyChannel]

Glad it helped!

[@جميلمسلم-ن2ق]

Is it possible for the valves to work again after a leg stroke?

[@SunburntWaffles]

Are valves only found in veins that go against gravity? Are there valves in the neck veins (or any veins going down towards the heart) because I feel like gravity would help the blood return to the heart, so no need for valves? Or what

[@DrEldersAnatomyChannel]

As far as I know, there are no valves in descending veins

[@qwjk1]

so they prevent backflow of the blood?

[@DrEldersAnatomyChannel]

Yes

[@qwjk1]

@@DrEldersAnatomyChannel thanks

[@arthurkuntz1525]

Is there any way of injecting the valves with steroids to make them stronger to work properly

[@DrEldersAnatomyChannel]

Not that I know of

[@aliam4297]

Please answere : When the veins become smaller the blood go up to the heart by forcing the valve to open , Then what happens to the vein whis become smaller?

[@DrEldersAnatomyChannel]

I don’t understand your question. Veins become larger as they go to the heart

[@aliam4297]

@@DrEldersAnatomyChannel Sorry, I used the word smaller instead of the word thinner or narrower (when the veins - located between the leg muscles - squeeze the blood)