The process of heart contraction stimulates by the initiation of an electrical impulse. This electrical impulse starts in the SA node.
<h3>What is the Heart contraction?</h3>
Heart contraction may be defined as a type of physiological activity that stimulates electrical impulses which are initiated by the sinoatrial node. Systole is significantly the contraction phase of the cardiac cycle.
The SA node is a small bundle of specialized cells that is remarkably located in the right atrium. The electrical activity escalates through the walls of the atria and induces them to contract. This action finally forces blood into the ventricles.
Therefore, the SA node is responsible for the initiation of impulses that stimulates heart contraction.
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A. everyone is influenced by them negatively.
Answer:
Explanation: what is a relay race? A relay race is a competition, of different type of stuff, like running qartwheels . The caterpillar, and man more. Hope this helps
Hi !
Which of the following is not a
function of Public Health
organizations?
<em>C. Keeping health statistics.</em>
