has part has part characteristic of part of has modifier Abnormality of the pharynx The pharynx is tubular structure extending from base of skull superiorly to esophageal inlet inferiorly, and is composed of three distinct areas: the nasopharynx, the oropharynx, and the hypopharynx, with the pharyngeal walls being composed of the superior, middle, and inferior pharyngeal constrictor muscles. It is part of the digestive system and of the conducting zone of the respiratory system. Abnormality of the upper respiratory tract Abnormality of the digestive system quality abnormal chordate pharynx