Question

15.Valves are found in veins to check the back flow of blood flowing under?

low pressure

high pressure

no pressure

atmospheric pressure

​

Answer 1

Answer:

Valves are found in veins to check the back flow of blood flowing under LOW PRESSURE .

Explanation:

It is often squeezed in the direction of the heart by the action of muscles. A system of valves stops the blood flowing in the backward direction.

Answer 2

hi MY FRND

ANSWER IS

LOW  PRESSURE

In veins, valves are present to check backward flow of blood flowing at. ... The flow of blood in veins is not so fast because the blood in veins is under low pressure. Veins posses valves which present backward flow of blood.