Hiccups can be best described as

Which of the following statements is incorrect regarding the human lungs?

Name the important parts involved in creating a pressure gradient between the lungs and the atmosphere during normal respiration.

Breathing involves ...$A$... during which atmospheric air is drawn in and ...$B$... by which the alveolar air is released out.
Choose the correct option for $A$ and $B$ to complete the given $NCERT$ statement.

Explain the process of inspiration under normal conditions.

What structures are responsible for the breathing process?