Pharynx: The pharynx is the portion of

The pharynx is the portion of the digestive system posterior to the nasal cavity, oral cavity, and larynx. The pharynx is a muscular tube that connects the nasal cavities to the larynx and oesophagus . It is common to both the alimentary and the respiratory tract. The tube begins at the base of the skull and ends inferior to the cricoid cartilage (C6). The pharynx is a muscular tube that serves as a shared pathway for both the respiratory and digestive systems . It connects the nasal cavity and oral cavity to the larynx and esophagus, facilitating the passage of air, food, and liquids. 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 ...