Answer: The OROPHARYNX
Explanation: The pharynx (throat ) is a passageway about 12+14sm long,it extends from the posterior nares,and runs behind the mouth and the larynx to the level of the 6h thoracic vertebrae where it becomes the oesophagus.
The pharynx is divided into three parts, nasopharynx(1st portion), oropharynx(2nd portion) and 3rd portion)laryngopharynx.
The oral part of the pharynx lies behind the mouth extending from below the level of the soft palate at the level of the upper art of the body of the 3rd cervical vertebra.the lateral walls of the pharynx blend with the soft palate to form two folds in a collection of of lymphoid tissue called the palantine tonsils.
When swallowing,the soft palate and uvula are pushed upwards,sealing off the nasal cavity and preventing the entry of food and fluid.
The oropharynx receives both air from the nasopharynx and food and air from the mouth.