Question

How heart Chambers squeezed all of their blood during contraction? please give me answer in four points​

Answer 1

Answer:

Wall of the heart is made from myocardial muscles which contract.

Explanation:

1) Electric potential from SA node is transmitted to bundle of hiss and then to purkinje fibres then to myocardium

2) Myocardium on receiving signal contracts

3) the space in the heart chamber reduces

4) blood escapes out through the only way present and travels further