Avian Botulism (Limberneck Disease). Posted on August 21, 2014 - 3:36pm. Avian Botulism is a paralytic, often fatal disease of wild and domestic birds resulting from the ingestion of a toxin produced by the bacterium Clostridium. Environmental studies have found seven toxins produced by botulinum bacterium; two of which, Types C & E, commonly cause mortality.
Definition of pharynx for English Language Learners. medical : the part inside your mouth where the passages of the nose connect to your mouth and throat.
Definition of Pharynx. The pharynx is the body cavity that connects the nasal and oral cavities with the larynx and esophagus. It is commonly referred to as the throat. The pharynx is part of both the digestive and respiratory systems.he pharyngeal tonsils, or adenoids, are located on the posterior wall of the nasopharynx. The oropharynx is behind the soft palate of the mouth and is below the nasopharynx. It serves as a passageway for food moving from the mouth to the esophagus and for air moving to and from the nasal cavity.