Breathing

• Inhalation


  The process of taking in oxygen (O2) into the lungs through the mouth or nose.
• Diaphragm


  A dome-shaped muscle that contracts and descends during inhalation, increasing the volume of the chest cavity.
• Lung Expansion


  The process by which the lungs expand and fill with air during inhalation, taking in oxygen (O2).
• Exhalation


  The process of releasing carbon dioxide (CO2) out of the body through the lungs during relaxation of the diaphragm.
• Respiratory System


  The organs involved in breathing, including the lungs, trachea, bronchi, and diaphragm.
• Respiratory Muscles


  The muscles involved in breathing, including the diaphragm and other accessory muscles.