intercostal

Examples of intercostal in the following topics:

• Types of Breathing

  • During eupnea, also referred to as quiet breathing, the diaphragm and external intercostals must contract.
  • 3) Costal breathing: a mode of breathing that requires contraction of the intercostal muscles.
  • As the intercostal muscles relax, air passively leaves the lungs.
  • In addition to the contraction of the diaphragm and intercostal muscles, other accessory muscles must also contract.
  • In addition, accessory muscles (primarily the internal intercostals) help to compress the rib cage, which also reduces the volume of the thoracic cavity.

• The Mechanics of Human Breathing

  • During the process of inhalation, the lung volume expands as a result of the contraction of the diaphragm and intercostal muscles (the muscles that are connected to the rib cage), thus expanding the thoracic cavity.
  • The intercostal muscles relax, returning the chest wall to its original position .

• The Work of Breathing

  • Flow-resistive work refers to the work of the alveoli and tissues in the lung, whereas elastic work refers to the work of the intercostal muscles, chest wall, and diaphragm.