Anatomy of the Nose
Dr. Andrew Rivera, Otolaryngologist with Baptist Health South Florida, says inside the nose there are folds of tissue called turbinates. They are large folds of mucosa over bone, which in many people can be too large and obstruct the nasal passage.
He also explains the nose is covered with mucosa that is meant to filter out particles in the air, and if you have an inflammation or allergy, the mucus becomes inflamed and will swell up.
