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Body Fluids and Circulations
Doctors use stethoscope to hear the sounds produced during each cardiac cycle. The second sound is heard when
AB valves open up
Ventricular walls vibrate due to gushing in of blood from atria
Semilunar valves close down after the blood flows into vessels from ventricles
AV node receives signal from SA node
C.
Semilunar valves close down after the blood flows into vessels from ventricles
In healthy adults, there are two normal heart sounds often described as lubb and dup. These are the first heart sound and second heart sound produced by closing of the AV valves and semilunar valves respectively.
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Write the differences between
(d) P wave and T wave
Write the differences between
Systole and diastole
Write the differences between
(a) Blood and lymph
Write the differences between
Open and closed circulatory system
What is the differences between lymph and Blood?
How many times does a heart beat per minute?
What is the function of bicuspid valves?
What is the function of tricuspid valves?
Why circulatory system is absent in sponges?
What does the QRS wave represent in an ECG?
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