Which type of blood vessel contains valves?

Only one option is a blood vessel at all.

Nova, The writers of these questions are other players. What this game needs is a fact-checker, and an editor for spelling and grammar. They also need to make the remarks uniform by date, instead of each question having its own weird date order.

Nova, Feel free to write questions. Creators frequently ask for input.

I just found out we can comment! 😂 started this game like 2 days ago, playing on hard difficulty (yeah I'm showing off 😂) mostly I'm correct, but when I answer wrong, I always tap the "explanation ", because every day you learn something new! I had this wrong, bummer of the sticker. but I need to ask... if a lever has 3 stars, is there a way to replay it somehow? and how can I find friends to play together, for no one I know plays this game... feel free to add me to play some awesome battles ♥ have a great game!

I studied anatomy and physiology so I thought I should be able to answer that.

If you players are so displeased with the Q/A/E, perhaps you should submit your own.

wesley, best of luck.

Lionesss👍 I totally agree with you and I think the whole point of this game should be to get the best of both possible outcomes.

The description sounds like it comes from a textbook for those studying to become doctors. It's hard for me to visualize this. I am a visual learner.

mast.nice.blood.life.

Process of elimination. Only one answer was a blood vessel.

Love that other fellow players are contributing to the trivia questions!

My cardiologist refers the backflow as reflux. I have mild reflux in both legs and plan to have it fixed with mildly invasive surgery. If not fixed, it can get ugly literally.

everyone should know this. that's why lifting your legs up in bed or vigorously massaging legs after standing or walking is so important. venous blood only passively flows back to the heart with the valves preventing back flow

Nova, They also are NOT great at coming up with easily understood answers! In my mind I equate the workings of the blood flow system to the basic workings of aquarium air supply systems that regulate , air, bubbling, filtering, and oxygen absorption in the water! All the medical jargon they use, although helpful, is mostly aimed at people in the medical sciences, and not so much for the rest of us! I have to "translate" it into simpler "mechanical" language to be able to parse it to any significant degree!

Dr. Zaius, There are correct options available, but because they are not normally listed in comics the “ question setters” won’t see them.

Champion, The writers aren’t great at coming up with realistic wrong answers.