Final answer:
The pharynx is divided into three parts: the nasopharynx, oropharynx, and laryngopharynx, each serving specific functions in the respiratory and digestive systems.
Step-by-step explanation:
The pharynx is usually divided into three parts: the nasopharynx, the oropharynx, and the laryngopharynx. These three regions each serve different functions within the respiratory and digestive systems. The nasopharynx is located superiorly and is involved only in breathing and speech. The oropharynx and laryngopharynx are involved in both breathing and digestion. Air and food pass through the pharynx as they enter the body before reaching either the esophagus or the respiratory tract.