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?
Name a animal having open circulatory system.
What are vasa vasorum?
Vasa vasorum are the network of small blood vessels that supply the walls of large blood vessels, such as elastic arteries (aorta) and large veins (vena cava).
What is ECG?
What is Tachycardia?
Define Bradycardia.
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