Answer:
the video describes an unhealthy heart as being enlarged.
Explanation:
duh i watched the video
1.A
2.B
3.C
4.A
5.B
6.C
7.B
8.D
9.C
10.A
Hope that that helps!!!!
CDC protect America from health, safety and security threats, both foreign and in the U.S whether diseases start at home or not
Because the heart is forced to pump out blood. In the upper right side of the heart is an bundle of cells called the sinoatrial node. Unlike any other cell in the body, these cells (nicknamed "pacemakers") keep sending out electrical impulses, more than once a second, to make the rest of the heart contract and pump out blood.
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