Figure 23-2 Mechanics of Ventilation

question 73

Multiple Choice

Figure 23-2 Mechanics of Ventilation

Use Figure 23-2 to answer the following questions:
-Which muscle(s) produce(s) the movement labeled "1"?

• A) rectus abdominis
• B) internal intercostals
• C) external intercostals
• D) diaphragm
• E) both rectus abdominis and external intercostals

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