It's actually a person's trachea, and those colored globs are microbes that are actually swimming around in this room right now, all around us.

It then courses behind the esophagus (or rarely in front of esophagus, or even in front of trachea) to supply blood to right arm.

After he began coughing up blood, he was taken by ambulance to a hospital, where he was diagnosed with a torn trachea and given five hours to live.

Other sources say that the chicken's severed trachea could not properly take in enough air to be able to breathe, and it therefore choked to death in the motel.

3.10.1.2 Aspiration means the entry of a liquid or solid chemical product directly through the oral or nasal cavity, or indirectly from vomiting, into the trachea and lower respiratory system.