The trachea has a number of adaptations: cartilage rings in the walls of the trachea help to keep it open ciliated epithelium and goblet cells to clean the air before it reaches the lungs Goblet ...

Researchers fear levels of smaller nanoplastics, which pass into the human body with greater ease ... meaning that breathing within indoor environments could be a major source of plastic pollution ...

Anaerobic close anaerobicWithout oxygen. respiration does not need oxygen (unlike aerobic respiration). It is the release of a relatively small amount of energy in cells by the breakdown of food ...