WHAT DOES CấU TạO CủA BOM MEAN?

Through expiration, the diaphragm passively relaxes and returns to its unique dome shape. This reduces the volume of your thoracic cavity.The diaphragm is a vital muscle mass that separates the upper body cavity within the abdominal cavity and plays a vital job in breathing. Once you inhale, the diaphragm contracts and flattens, allowing your lungs