According to Heart, cardiac arrest is when heart suddenly stop beating instantly but a myocardial infarction is when a heart muscle lacking from blood supply such as oxygen and cell this cause a heart attack.
Emphysema involves damage to alveoli. Thus option D is correct.
<h3>What is Emphysema?</h3>
A condition in lungs due to which shortness of breath occurs. People with emphysema, alveoli( air sacs present in the lungs) are damaged.
After some time the inner portion of the air sacs weaken and rupture that create large air spaces instead of many small ones .
Due to this reason the surface area of the lungs reduces and in turn the amount of oxygen that reaches to the blood stream.
The main symptoms of emphysema are coughing, shortness of breath, chest tightness and wheezing.
Therefore, emphysema involves damage to alveoli. Thus,option D is correct.
Learn more about Emphysema here :
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They must share the same domain
I would say C, preform at least moderate intensity exercise regularly.
