Pakistan's Largest MCQs Website — NTS, FPSC, PPSC, BPSC, SPSC Tests

🧬

“lub” sound is produced after _________ ?

BiologymediumBy: Rashid Mehmood
AThe ventricles are fully contracted
BThe ventricles start to relax
The bicuspid and tricuspid valves suddenly close
DThe semilunar valves are closed

Correct Answer: C. The bicuspid and tricuspid valves suddenly close

Related Questions