★ HNBS Intern Quiz
The vagal system includes the following, except:
A. VI cranial nerve
B. Cranial portion of XI cranial nerve
C. IX cranial nerve
D. X cranial nerve
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Which of the following is true about external intercostals?
A. When present with the internal intercostals, the external intercostals will act in expiration only
B. Assists in forced expiration
C. Has fibers that are slanted downward and backward
D. Does not show any activity during normal, quiet breathing
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