1.

What is the role of papillary muscles and chordae tendinae in human heart?

Answer»

1. Papillary muscles are large and welldeveloped muscular ridges present along the inner surface of the ventricles. 

2. Bicuspid and tricuspid valves are attached to papillary muscles of ventricles by chordae tendinae. 

3. Chordae tendinae are inelastic fibres present in the lumen of ventricles. 

4. The chordae tendinae prevent the valves from turning back into the atria during the contraction of ventricles and regulate the opening and closing of bicuspid and tricuspid valves.



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