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Body Fluids and Circulations
Which one of the following human organs is often called the “graveyard” of RBCs?
Gall bladder
kidney
Spleen
Liver
C.
Spleen
The average life span of human RBCs is 120 days. The aged RBCs attract autoantibodies after which they are attached by macrophages in liver and spleen. Spleen is also called as graveyard of RBCs. The process of destruction of RBCs is called haemolysis. About 2.5 million RBCs destroyed every second in body.
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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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