Valves prevent backflow of blood inside the heart during contraction.

True

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

False

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A
True

Valves ensure that blood does not flow backwards when the atria or ventricles contract. Since ventricles have to pump blood into various organs with high pressure, they have thicker walls than atria. The separation of the right side and left side of the heart by valve also helps to keep oxygenated and deoxygenated blood from mixing so as to supply a high amount of oxygen to the body.

Suggest Corrections

Similar questions

Q. What prevents backflow of blood inside the heart during contraction?

Question 18
What prevents backflow of blood inside the heart during contraction?

(a) Valves in heart
(b) Thick muscular walls of ventricles
(c) Thin walls of atria
(d) All of the above

What prevents the backflow of blood inside the heart during contraction ?
(a) thick muscular walls of ventricles
(b) valves
(c) thin walls of atria
(d) all of the above

Valves are present to prevent backflow of blood in the heart.

Q. Fill in the blanks with approriate words.
..........valves prevent backflow of blood into the heart.

Join BYJU'S Learning Program