Doctors use stethoscope to hear the sounds produced during each cardiac cycle.

Doctors Use Stethoscope To Hear The Sounds Produced During Each Biology QuestionDoctors Use Stethoscope To Hear The Sounds Produced During Each Biology Question

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.

AddThis Website Tools
admin:

Related Questions

  1. African sleeping sickness is caused by
  2. The communities of primary succession are called as
  3. Argentaffin cells are found in
  4. The juxtaglomerular apparatus is a special region formed by close placement
  5. In which one of the following preparations are your likely to come across cell junctions