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Doctors use stethoscope to hear the sounds produced during each cardiac cycle.The second sound is heard when:
Options
(a) Ventricular wall vibrate due to gushing in of blood from atria
(b) Semilunar valves close down after the blood flows into vessels from ventricles
(c) AV node receives signal from SA node
(d) AV valves open up
Correct Answer:
Semilunar valves close down after the blood flows into vessels from ventricles
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Human Body Fluids and Excretory Products
(197)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In genetic engineering which is used for transfer of genes from one cell to another
- The degree of opening of stomata is determined by
- The role of pacemaker in heart is to
- Phyllode is present in :
- Two common characters found in centipede cockroach and crab are
Topics: Human Body Fluids and Excretory Products (197)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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