Which of the Following Muscles Increases the Volume of the Thorax

question 97

Multiple Choice

Which of the following muscles increases the volume of the thorax during a normal inhalation?
(1) Diaphragm
(2) External intercostals
(3) Internal intercostals
(4) Rectus abdominis

• A) 1, 2
• B) 1, 3
• C) 2, 3
• D) 2, 4
• E) 3, 4

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