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.
What is the Pharynx. Pharynx is the 4-5 inches long semicircular fibromuscular tube, commonly referred to as the throat [1] that connects the nasal cavity to the larynx, and the oral cavity to the esophagus [2, 3].