Q. If due to some injury the chordae tendinae of the tricuspid valve of the human heart is partially non-functional, what will be the immediate effect?
A) The flow of blood into the pulmonary artery will be reduced
B) The flow of blood into the aorta will be slowed down
C) The pacemaker will stop working
D) The blood will tend to flow back into the left atrium
Explanation
[Solution from source] Chordae tendineae stop the tricuspid valve from turning inside out during ventricular systole. If they fail, part of the right ventricle's blood leaks back into the right atrium, so less is pumped into the pulmonary artery. The left atrium is on the other side of the heart (the bicuspid valve), so backflow there is not the effect. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.