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Body Fluids and Circulations
Why are walls of auricles thinner than walls of ventricles?
The walls of auricles thinner than walls of ventricles because auricles have to pump blood to ventricles which are lying below them and ventricles have to pump to all parts of the body. The thicker walls allow the ventricles to pump the blood to the different blood vessels with more force.
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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?
Why circulatory system is absent in sponges?
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