Question

Place the steps describing how blood flows through the human heart in order.
(98 points)

Answer 1

Solution:

1) electrical signal travels towards heart.
2) signal by the nodes to the atrium.
3) atria contract.
4) signal received by atrioventricular node.
5) signal transferred to ventricles.
6) ventricles contract.


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Answer 2

1. blood enters the heart through two large veins .
2. the superior and inferior vena cava .
3. carrying deoxygenated blood from the body into the right atrium .
4. blood flows from the right atrium to the right ventricle through the tricuspid valve .

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