What prevents the backflow of the blood inside the heart during contraction?
valves in heart
Thick muscular valves of the ventricles
Thin walls of atria
All of these
What prevents the backflow of the blood inside the heart during contraction?
valves in heart
Thick muscular valves of the ventricles
Thin walls of atria
All of these
The correct option is A valves in heart
The correct option is A:
Valves present in the heart appear as flaps, they work like a door.
They are known to prevent the backflow of the blood.
They open up to allow transportation of blood and close down when not needed.
Explanation for incorrect options:-
Option B:
The role of the walls of the ventricles is to generate pressure, they do not play role in controlling the backflow of the blood. S…o this option is incorrect
Option C:
The role of the atrium wall is to squeeze and relax, it has no control in preventing the backflow of the blood. So this option is incorrect
Option D:
All the options are not true, the role of the walls of the atrium and ventricle is not preventing the backflow. so this option is incorrect.
valves in heart
The correct option is A:
Valves present in the heart appear as flaps, they work like a door.
They are known to prevent the backflow of the blood.
They open up to allow transportation of blood and close down when not needed.
Explanation for incorrect options:-
Option B:
The role of the walls of the ventricles is to generate pressure, they do not play role in controlling the backflow of the blood. S…o this option is incorrect
Option C:
The role of the atrium wall is to squeeze and relax, it has no control in preventing the backflow of the blood. So this option is incorrect
Option D:
All the options are not true, the role of the walls of the atrium and ventricle is not preventing the backflow. so this option is incorrect.
