The phrenic nerve controls the diaphragm, the dome-shaped muscle that is primarily responsible for breathing. Contraction of the diaphragm expands the lungs and draws air into them. The phrenic nerve ...

1 Department of Emergency Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan 2 Department of Internal Medicine, National Taiwan University ...

Definitions of hypoxaemia, hypoxia, type 1 respiratory failure and hyperoxaemia Definition of hypercapnia and type 2 respiratory failure Definition of acidosis (respiratory acidosis and metabolic ...

Out with the old, stale air and in with new fresh air. That's the theme of the two most useful breathing exercises—pursed lip breathing and belly breathing—taught by pulmonary rehabilitation ...

Memorial Hospital of Rhode Island and Brown University, Pawtucket, Rhode Island, USA Correspondence to Dr F Dennis McCool, Pulmonary, Critical Care and Sleep Medicine, Memorial Hospital of Rhode ...