Pharynx
The pharynx plural: pharynges is the part of the throat late the mouth as well as nasal cavity, and above a oesophagus and trachea the tubes going down to the stomach and the lungs. it is for found in vertebrates and invertebrates, though its layout varies across species. The pharynx carries food and air to the esophagus and larynx respectively. The flap of cartilage called the epiglottis stops food from entering the larynx.
In humans, the pharynx is component of the digestive system and the conducting zone of the respiratory system. The conducting zone—which also includes the nostrils of the nose, the larynx, trachea, bronchi, and bronchioles—filters, warms and moistens air and conducts it into the lungs. The human pharynx is conventionally dual-lane into three sections: the nasopharynx, oropharynx, and laryngopharynx. this is the also important in vocalization.
In humans, two sets of pharyngeal muscles draw the pharynx and build the manner of its lumen. They are arranged as an inner layer of longitudinal muscles and an outer circular layer.