Figure 21- 1 The Upper Airways
Use Figure 21- 1 to answer the following questions:
-Which of the following muscles might be recruited to increase inspired volume?
A) scalenes
B) serratus anterior
C) sternocleidomastoid
D) pectoralis minor
E) all of the above

Question

Figure 21- 1 The Upper Airways
Use Figure 21- 1 to answer the following questions:
-Which of the following muscles might be recruited to increase inspired volume?
A) scalenes 
B) serratus anterior 
C) sternocleidomastoid 
D) pectoralis minor 
E) all of the above

Quizplus · Accepted Answer

All the listed muscles can assist in increasing inspired volume by elevating the ribs or expanding the thoracic cavity during deep or forceful inhalation.

Figure 21- 1 the Upper Airways