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The mechanism of breathing can be divided into two process. INSPIRATION AND EXPIRATION Describe the process of Inspiration and include the muscles and their actions. 10​

Sagot :

AetherLunaidn

Answer:

  • Inspiration / Inhale

This process Po is when you inhale air through our nose/mouth onto our body.During inspiration, the diaphragm contracts and the thoracic cavity increases in volume.

  • 3 primary muscle

  1. External intercostal muscles
  2. Internal intercostal muscles
  3. Innermost intercostal muscles.

External intercostal muscles

  • muscles that connect the ribs in such a way that the contraction of the muscles lifts the ribs and rib cage and expands the anterior–posterior dimensions of the rib cage.

Internal intercostal muscles

  • The internal intercostals pull down on the rib cage and push air out of the lungs. The internal intercostals are the most important respiratory muscles for normal speech and singing, for they are the muscles that propel air out through the mouth and nose.

Innermost intercostal muscles.

  • Innermost intercostals comprise the third and deepest layer of intercostal muscles. They are located deep to the internal and external intercostals, filling the 11 intercostal spaces between the ribs together with the other intercostal muscles.

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