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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 humans which among these is not a step in respiration
- The first acceptor of carbondioxide in C plants is
- Cytoplasm and nucleus are separated by a membrane which is
- Floridian starch is the stored food material in
- One of the legal methods of birth control is :
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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