NEET 2010
- Exam
- NEET
- Year
- 2010
- Subject
- Zoology
- Chapter
- Body Fluids and Circulation
NEET 2010 · Zoology · Body Fluids and Circulation
If due to some injury the chordae tendinae of the tricuspid valve...
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?
Options
- AThe flow of blood into the aorta will be slowed down
- BThe 'pacemaker' will stop working
- CThe blood will tend to flow back into the left atrium
- DThe flow of blood into the pulmonary artery will be reduced
Correct answer
D. The flow of blood into the pulmonary artery will be reduced
Step-by-step solution
Strong, thread-like tendons, called chordae tendinae, arise from papillary muscles and insert upon the flaps of tricuspid and bicuspid valves. The valves in the heart allow the flow of blood only in one direction, , from the atria to the ventricles and from the ventricles to the pulmonary artery or aorta. If chordae tendinae of the tricuspid valve became partially non-functional due to injury then the flow of blood into the pulmonary artery will be reduced.