Which of the following describes a diaphragm?
A. Primary muscle used in respiration, which is the process of breathing.
B. Carry oxygen rich air into the lungs and carry carbon dioxide rich air out of the lungs
C. Area that connects the throat to the windpipe (trachea).
D. Serves as secondary external opening for the respiratory tract
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It refers to a condition that causes shortness of breath, caused by damage in the air sacs in the lungs (alveoli)?
A. Asthma
B. Emphysema
C. Bronchitis
D. Sinusitis
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