Question

Which respiratory associated muscles would be contracted if you blow up a balloon?

• A. Diaphragm contracts and internal intercostal muscles would relax
• B. External intercostal muscle contract and phrenic muscles would contract
• C. Internal intercostal and abdominal muscle would contract
• D. Internal intercostal muscles are external intercostal muscles would contract

Answer 1

The correct option is B External intercostal muscle contract and phrenic muscles would contract

Intercostal and abdominal muscle would contract if we blow up a balloon. When this occurs, you are interrupting the natural rhythm of breathing. The inhalation process is blowing up a balloon. As you this movement is facilitated by the contraction of the external intercostal muscles.

So the correct answer is' Internal intercostal and abdominal muscle would contract'.