The process in which the intercostal muscles contract, pulling the rib cage upward and outward and causing the lungs to inflate, is called ________.

Question

Quizplus · Accepted Answer

The process described in the sentence is that of inspiration, where the intercostal muscles contract and cause the rib cage to move outwards and upwards, expanding the space in the chest cavity and allowing the lungs to fill with air. Option B (expiration) and option C (exhalation) describe the process of the intercostal muscles relaxing and the rib cage returning to its original position, causing air to be expelled from the lungs. Option D (deflation) is not an accurate term for this process.

The Process in Which the Intercostal Muscles Contract, Pulling the Rib