Answered

Which statement about cardiac valves is false?

A. They are made up of muscular flaps attached to the heart by tendons.
B. Stenosis refers to valves which do not open fully.
C. They are two-way valves which allow blood to flow in whatever direction it is needed.
D. Cardiac murmurs are caused by turbulent blood flow through valves.



Answer :

GinnyAnswer

Final answer:

The false statement is about the function of cardiac valves in the heart.


Explanation:

The statement: They are two-way valves which allow blood to flow in whatever direction it is needed is false. Cardiac valves are one-way valves that ensure the unidirectional flow of blood through the heart.

Example: In the heart, the mitral valve and tricuspid valve are atrioventricular valves that prevent the backflow of blood from the ventricles to the atria.

Relevant information: Valvular defects, like stenosis or incompetence, can result in heart murmurs due to turbulent blood flow when the valves do not operate properly.


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