Question

When we inhale (breathe in), what happens to the pressure in the thorax?

a. It increases
b. It decreases
C. It stays the same
d. It will become normal​

Answer 1

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Answer 2

Answer:

Option b . it decreases

Explanation:

During the process of inhalation , the lung volume expands as a result of the contraction of the diaphragm and intercostal muscles (the muscles that are connected to the rin cage ), thus expanding the thorax cavity . Due to increase in volume , the pressure is decreased based on the principals of Boyle's law .

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