Pharynx, cone-shaped passageway leading from the oral and nasal cavities in the head to the esophagus and larynx. The pharynx chamber serves both respiratory and digestive functions. It consists of three main divisions: the nasal pharynx, the oral pharynx, and the laryngeal pharynx. The pharynx is a conductive structure located in the midline of the neck. It is the main structure, in addition to the oral cavity, shared by two organ systems, i.e., the gastrointestinal tract (GIT) and the respiratory system. It is funnel-shaped with its upper end being wider and located just below the lower surface of the skull, and its lower end is narrower and located at the level of the sixth cervical vertebra (C6) where the commencement of the esophagus posteriorly and the larynx ... The pharynx is a broad, conical fibromuscular tube forming the upper segment of the air and food passages. Situated posterior to the nasal cavity, oral cavity, and larynx, it spans a length of 12–14 cm, extending from the pharyngeal tubercle at the skull base (basiocciput and basisphenoid) to the lower border of the cricoid cartilage (C6), it becomes continuous to the oesophagus. The width of the pharynx measures approximately 3.5 cm at its base, narrowing to 1.5 cm at the pharyngo ... The pharynx is a conducting structure in the neck's midline. It is the primary structure shared by two organ systems, the gastrointestinal tract (GIT) and the respiratory system, in addition to the mouth cavity. It is funnel-shaped, with the top end broader and just below the lower surface of the skull, and the lower end narrower and at the level of the sixth cervical vertebra.
