Valves are found in veins to check the backflow of blood flowing under

Low pressure

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High pressure

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No pressure

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Atmospheric pressure.

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Solution

The correct option is A
Low pressure

Veins are thin-walled blood vessels which bring blood from the body back to the heart. They are larger and hold more blood than the arteries. The blood passing through the wide lumen of veins is deoxygenated (except in pulmonary veins) and has low pressure. It flows slow and steady. Therefore, to prevent the backflow of blood, veins have valves.

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Similar questions

Q. have valves to prevent backflow of blood moving under low pressure.

Q. State the true statements of the following:

(1)

Blood flowing in arteries is without high pressure.

(2)

Blood flowing in veins is without high pressure.

(3)

Veins have valves opening towards heart.

(4)

Arteries have valves opening towards heart.

Q. Why doesn't the arteries need valves?
1. Is it because of high pressure . CAN HIGH PRESSURE MAKE THE CELLS MOVE IN FORWARD DIRECTION?
2. So that means that because the cells in the veins dont have much pressure they need valves..

3. But this goes against..this..
" Varicose veins occur when veins are unable to prevent backward flow of blood in places where high blood pressure occurs such as in the feet"

Plz explain while considering my guess.

Thankyou

Veins have valves to prevent the backflow of blood because the blood in veins flow ________.

Q. In veins, valves are present to check backward flow of blood flowing at:

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