Question

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 'Pacemaker' will stop working
• B. The blood will tend to flow back into the left atrium
• C. The flow of blood into the pulmonary artery will be reduced
• D. The flow of blood into the aorta will be slowed down

Answer 1

Answer: (C)

The flow of blood into the pulmonary artery will be reduced

Answer 2

Tricuspid valve is the valve in the heart between the right atrium and right ventricle. It consists of three cusps that channel the flow of blood from the atrium to the ventricle. When the right ventricle contracts, forcing blood into the pulmonary artery, the tricuspid valve closes the aperture to the atrium, thereby preventing any backflow of blood. The valve reopens to allow blood to flow from the atrium into the ventricle. Thus, if tricuspid valve is partially non-functional the flow of blood into the pulmonary artery will be reduced.