Warmed and humidified inspired air continues its journey from the larynx into the lower respiratory tract (see the first part of this four-part series) and passes next through the trachea. Subscribe ...

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Take a deep breath in …and out. Feels good, right? And it's also necessary for staying alive. But what ...

Respiratory disorders may present with cough, sputum, wheeze or haemoptysis. Differentiation from cardiac disease (which may be concurrent) can be difficult since certain features are common to both.