Join the Most Relevant JEE Main 2025 Test Series & get 99+ percentile! Join Now
Search any question & find its solution
Question: Answered & Verified by Expert
What do the valves in the heart do?
BiologyBody Fluids and CirculationNEET
Options:
  • A Allow blood flow in both directions
  • B Prevent any backward flow
  • C Allow blood flow only in the ventricles
  • D Allow blood flow only in the atria
Solution:
2553 Upvotes Verified Answer
The correct answer is: Prevent any backward flow
The valves in the heart allow the flow of blood only in one direction, i.e., from the atria to the ventricles and from the ventricles to the pulmonary artery or aorta, and prevent any backward flow.

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.