👉 The term "mesonasal" refers to a specific part of the nasal cavity, specifically in the upper part. It is characterized by its shape and size, with a rounded shape that extends from the nose up to the earlobe. This area is also known as the nasopharynx or the subnasal area. Mesonasal is important because it plays a crucial role in the development of the respiratory system, where it is responsible for the exchange of air between the nasal cavity and the
