<span>Myocardium
The heart has four chambers, four valves. It is composed of cardiac muscles which all in all pumps blood throughout the human body through the blood vessels. When something gets injured around the heart, well it will automatically, in high possibility stop functioning. Take not of the valves and the most important is the sinoatrial node which is the pace maker of the heart. It is what triggers the heart to pump itself and the valves then function and the blood travels and then gets cleansed out of carbon dioxide in the alveoli.<span> </span></span>
The industrial Revolution was the improvements in technology and new ways to work, Countries increased trade, and new resources were used in the industry to make food as well as clothing.
Dialogue
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Questions and answers
1. What three areas should your writing assignment address about the development of the United States after the American Revolution?
C, D, A
2. The phrase transcontinental nation refers to the United States spanning from the __________.
B
