During quiet inhalation, a number of respiratory muscles contract in order to draw air into the lungs. One of the key muscle groups involved in this process is the diaphragm, which is a large sheet of muscle that separates the chest cavity from the abdominal cavity.

As the diaphragm contracts, it flattens out, which increases the vertical space within the chest cavity. This, in turn, creates a negative pressure that draws air into the lungs.

In addition to the diaphragm, other muscles that contract during quiet inhalation include the external intercostals, which are located between the ribs. These muscles play a key role in expanding the chest cavity horizontally, which further increases the space available for air intake.

Other respiratory muscles that may also contract during quiet inhalation include the scalene muscles, which are located in the neck, and the sternocleidomastoid muscles, which are located in the front of the neck. These muscles help to lift the ribcage and increase the overall volume of the chest cavity.

It`s worth noting that while these muscles are all involved in quiet inhalation, they may also be used during other types of breathing, such as deep breathing or forced exhalation.

Quizlet is an online learning platform that can be especially helpful for students studying anatomy and physiology. There are a variety of resources available on Quizlet that can help students learn about the respiratory system, including flashcards, quizzes, and study guides.

If you`re studying the respiratory system and want to learn more about the muscles involved in quiet inhalation, Quizlet can be a great resource. By using interactive study tools like flashcards and quizzes, you can reinforce your understanding of this important process and feel more confident in your knowledge.