According to the material, what happens to the diaphragm during expiration?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $25.99Unlock all

Prepare for the NREMT Advanced-EMT Test. Use flashcards and multiple choice questions, complete with hints and explanations. Ready yourself for success on your exam!

Multiple Choice

According to the material, what happens to the diaphragm during expiration?

Explanation:
During expiration, the diaphragm relaxes. This relaxation allows the diaphragm to rise into its dome-shaped resting position, reducing the vertical dimension of the thoracic cavity. As the lungs recoil, air is pushed out passively. In contrast, contraction of the diaphragm enlarges the thoracic cavity and draws air in during inspiration. Elevation of the ribs occurs with inspiration due to intercostal muscle action, not expiration.

During expiration, the diaphragm relaxes. This relaxation allows the diaphragm to rise into its dome-shaped resting position, reducing the vertical dimension of the thoracic cavity. As the lungs recoil, air is pushed out passively. In contrast, contraction of the diaphragm enlarges the thoracic cavity and draws air in during inspiration. Elevation of the ribs occurs with inspiration due to intercostal muscle action, not expiration.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy