(a) How many chambers are present in the human heart? Which heart chambers have thicker walls?
(b) How many times does the heart of a resting person beat in a minute?
(a) There are four chambers in the human heart.
They are two atria and two ventricles.
The ventricles have thicker walls.
(b) The heart beats 72 - 80 times per minute in a resting person.
You have rated this answer /10