A normal cough reflex includes which of the following phases? 1. Irritation 2. Inspiration 3. Compression 4. Expulsion
a. 1, 2, and 3 only
b. 1 and 4 only
c. 1, 2, 3, and 4
d. 2 and 3 only
ANS: C
As shown in Figure 43-1, there are four distinct phases to a normal cough: irritation, inspiration, compression, and expulsion.
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