Question

Choose the changes that take place during inhalation.

• A. Diaphragm moves down
• B. Ribs expand
• C. Lungs contract
• D. Air moves inside the lungs

Answer 1

Answer: (A), (B), (D)

The correct options are
A Diaphragm moves down
B Ribs expand
D Air moves inside the lungs

The following are the changes taking place during inhalation and exhalation.

$\begin{array}{ccc}\text{Changes in}& \text{Inhalation}& \text{Exhalation}\\ \text{Diaphragm}& \text{Moves down}& \text{Moves up}\\ \text{Ribs}& \text{Expand}& \text{Contract}\\ \text{Lungs}& \text{Expand}& \text{Contract}\\ \text{Air}& \text{Moves in}& \text{Moves out}\end{array}$