Pneumothorax is a condition in which a puncture has allowed air to enter the chest cavity. The air puts pressure on the lungs, preventing them from expanding. Why would this cause short and shallow inspiration?

Lung volume cannot decrease as much, and so air pressure cannot increase.

Lung volume cannot increase as much, and so air pressure cannot decrease.

Lung volume cannot increase as much, and so air pressure cannot increase.

Lung volume cannot decrease as much, and so air pressure cannot decrease.

Question

Pneumothorax is a condition in which a puncture has allowed air to enter the chest cavity. The air puts pressure on the lungs, preventing them from expanding. Why would this cause short and shallow inspiration?

Lung volume cannot decrease as much, and so air pressure cannot increase.

Lung volume cannot increase as much, and so air pressure cannot decrease.

Lung volume cannot increase as much, and so air pressure cannot increase.

Lung volume cannot decrease as much, and so air pressure cannot decrease.

Kabbed · Answer

@Ferredoxin4 final question :D

Ferredoxin4 · Answer

It's option B. 
This condition is where the air pressure is too high and lung volume can't increase as much.

Kabbed · Answer

thank you so much for all the help good luck on your final anatomy exam :) Happy Summer!

Ferredoxin4 · Answer

Thanks! You as well.