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Question : Study the following statements with respect to human cardiovascular system and choose the correct one.

Answer»

All the openings that ALLOW the flow of deoxygenated blood into right atrium are GUARDED by valves whereas the openings of pulmonary veins have no valves
'AVN' is seen in the LOWER right corner of the right atrium postero inferior region of the inter atrial septum
The semilunar valves of aortic arches are CLOSED during ventricular filling.
Tricuspid and bicuspid valves are inter connected by chordae tendineae

Answer :C


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