CBSE Class 7 Answered
(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?
Asked by Topperlearning User | 12 Feb, 2015, 02:42: PM
Expert Answer
(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.
Answered by | 12 Feb, 2015, 04:42: PM
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