Question

How would heart function be affected if the AV valves didn’t completely close during ventricular contraction? What problem would the backflow create?

Answer 1

Hint: Blood flows into, through, and out of your heart every time it beats. Every hour, your heart pumps approximately 100 gallons (379 liters) of blood through your body. Only one direction of blood flows through your heart. Heart valves, which open and close with each heartbeat, play critical roles in this one-way blood flow.

Complete answer:
Heart function is affected if the AV valves didn’t completely close during ventricular contraction because it’s valve doesn't close completely so the 2 main problems will be backflow of blood.

Heart valve disorders can arise from 2 main sorts of problems:
I) Regurgitation (or leakage of the valve). When the valve(s) don't close completely, it causes blood to flow backward through the valve. This reduces forward blood flow and may cause volume overload within the heart.
II) Stenosis (or narrowing of the valve). When the valve(s) opening becomes narrowed, it limits the flow of blood out of the ventricles or atria. the guts is forced to pump blood with increased force to maneuver blood through the narrowed or stiff (stenotic) valve(s).

Regurgitation is a condition in which your blood flow is reversed, which can lead to a variety of heart problems, including MVP (Mitral Valve Prolapse). It's a problem because your heart works like a pump, sealing everything that needs to be sealed at the right time. If your AV valve is affected, it won't seal as well as it used to, allowing blood to return.

Note: Replacement of a heart valve. Heart valves that are severely malformed or destroyed must be replaced with a replacement valve. Tissue (biologic) valves, such as animal valves and donated human aortic valves, or mechanical valves could also be used as replacement valves.