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Body Fluids and Circulations
The first heart sound is produced when :
diastole begins
semilunar valve close quickly
interventricular pressure decreases
bicuspid and tricuspid valve close quickly
D.
bicuspid and tricuspid valve close quickly
First heart sound 'lubb' is low pitched and of long duration, which produced by tight closure of bicuspid and tricuspid valve at the start of ventricular contraction.
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Why do we call our heart myogenic?
Sino-auricular node is called pacemaker of our heart. Why?
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?
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