A contemplative question. If the mitral valve does not close properly . . .
A. The systemic circuit is affected.
B. The pulmonary circuit is affected.
C. Both A and B are correct.
D. The bronchial circuit is affected.
E. None of the above.

A. The systematic circuit is affected.

Explanation:

Issues pertaining the mitral valve comes up when it has an issue resulting it to send back what it circulates back to the left autrium.

Treatment of mitral valve regurgitation depends on how severe your condition is, whether it's getting worse and whether you have symptoms. For mild leakage, treatment is usually not necessary. You may need heart surgery to repair or replace the valve for severe leakage or regurgitation. Left untreated, severe mitral valve regurgitation can cause heart failure or heart rhythm problems (arrhythmias). Even people without symptoms may need to be evaluated by a cardiologist and surgeon trained in mitral valve disease to determine whether early intervention may be beneficial.

we both have laws and checks and balances.