Multiple choice

Which of the following statements regarding exhalation process in human beings is correct?

  1. Air moves out, rib cage moves out and diaphragm moves down.

  2. Air moves out, rib cage moves in and diaphragm moves up.

  3. Air moves in, rib cage moves out and diaphragm moves down.

  4. Air moves in, rib cage moves in and diaphragm moves up.

  5. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Yes, it is correct. When the diaphragm moves up, the rib cage moves in and air is exhaled.

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