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valves in the human body are just like water valves, when the heart pumps it pushes blood through veins and arteries. The valves keep the blood in forward motion preventing a back flow. there are valves in the veins but not in the arteries. The valves in the veins keep the unoxygenated blood moving towards the heart to be reoxygenated and keeps it from back flowing into the venus system There are valves in the heart also. there are valves between the upper chambers of the heart (the atria) and the lower chambers (the ventricles. They function the same way, by keeping the blood flowing in the right direction. There are also valve in the heart between the right ventricle flowing towards and thru the pulmonary vein on its way to the lungs and a valve between the left ventricle and the aorta, keeping the reoxygenated blood flowing forward to the rest of the body.
Wiki User
∙ 16y ago
Wiki User
∙ 12y agoDepends where it is mainly. If it's a heart valve, you might have a heart mur-mur (which if it's severe, then it could lead to death) But the blood flow could be in the wrong place at the wrong time causing damage. (YES, I'm 13 and I know this stuff... I blame my mom who's a nurse practitioner)
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Do heart valves control the direction of blood flow?
Yes. That is 'the' function of the heart valves or for that matter valves.
What flap of tissue keeps the blood flowing in the wrong direction?
These are valves, and are found in veins to prevent blood from flowing backwards.
Why veins in head and face don't have valves?
I assume you mean "Why do veins in the head and face lack valves?"The answer is due to being organisms with upright posture. You need valves in your legs to keep the blood from falling down to your feet, and instead propel the blood to your heart. Your head, though, is above your heart, so you don't want valves trapping the blood in the head. That would cause headaches and perfusion issues. So lacking valves allows blood to flow down to the heart.
Why are there valves between the different chambers of the heart?
The valves between the chambers of the heart are there to prevent the backflow of blood between the atria and the ventricles. (Bicuspid and Tricuspid Valves) and to prevent the backflow of blood between the Aorta and the ventricle on the left side and the ventricle and the pulmonary artery on the right side. (Semi lunar valves) If there are problems with valves, this can lead to varicous veins.
What function to the valves have related to circulation?
they provent blood from backflowing
What prevents blood from pooling in the legs of humans and pigs?
The valves in the veins
What is faulty heart valve?
Overview. In heart valve disease, one or more of the valves in your heart doesn't work properly. Your heart has four valves that keep blood ...
Which blood vessels in humans contain structures that allow ti flow in only one direction?
veins, they have valves, the reason why they have them is because blood flow is slow
Do valves prevent the flow of blood?
Valves prevent the backflow of blood
What blood vessels contain valves and why?
Only veins contain valves. The valves prevent the backward flow of blood.
Do capilliaries have valves?
Capillaries do not have valves. Veins are the blood vessels with valves.
What do valves do in your heart?
valves prevent the backflow of blood.
What causes abnormally swollen veins in legs?
They are called varicose veins and they are a result of faulty valves in the veins that allow blood to pool or flow back instead of going forward and the vein then bulges.
Are two or three-way valves necessary to prevent back flow of blood?
No, the valves that prevent backflow of blood are one-way valves.
What is the use of valves in the heart.?
The use of the valves in the heart is to have blood flow regularly through the heart. The valves pump blood out of the heart into the body.
What keeps blood in the blood vessels from flowing back to the ventricles?
The heart has valves for to allow blood flow in one direction only. They close as the blood passes each. Hooweestik.
What do arteries contain that prevent the back flow of blood?
Nothing, it is only pressure that keeps blood moving in the right direction in arteries. Veins have valves that prevent backflow of blood, but arteries do not.
