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

Valves

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

Auricles

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

Ventricles

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

Pacemaker

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

Open in App

Solution

The correct option is A
Valves

Valves prevent backflow of blood from ventricles to atria when ventricles contract, and from the blood vessels to the ventricles when the ventricles relax.

Suggest Corrections

Similar questions

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

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

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

Q. Complete the following passage:

Valves function to prevent backflow of blood and maintain a unidirectional circulation of blood within the body. The (i)__________ valve separates the right atrium from the right ventricle whereas the (ii)_____________ valve separates the left atrium and left ventricle. The (iii)___________ valve prevents the backflow of deoxygenated blood from the pulmonary artery into the right ventricle while the (iv)__________ valve prevents the backflow from aorta into the left ventricle.

Join BYJU'S Learning Program

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

The correct option is A Valves Valves prevent backflow of blood from ventricles to atria when ventricles contract, and from the blood vessels to the ventricles when the ventricles relax.

The correct option is A
Valves

Valves prevent backflow of blood from ventricles to atria when ventricles contract, and from the blood vessels to the ventricles when the ventricles relax.