The blood flows in the veins due to the
'Anemia' is caused due to lack of
An adult human body contains approximately
Dead red blood cells are broken up in
Tubes in the body of a human or an animal in which red liquid flows, are generally called
When pace of heartbeat is not steady in the presence of a pacemaker
A pigment in red blood cells which makes the color of blood "Red" is known as
White blood cells live long because they have
Excessive amount of glucose is passed out from body with
All veins carry deoxygenated blood except
The fluid in blood is known as
The task of pacemaker is to
The biggest vein in a human body is known as
Arteries carry blood
The hormone which converts glucose to glycogen is known as
Converted glucose is stored in
The function of the valves is to
In one complete round of circulation, blood comes to heart
The number of red blood cells that die every day is
The walls of veins are not thick as those of arteries because
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