This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pharynx, Subject name: ENT
Parapharygeal space is also known as 
Select and explain. 
A. Retropharyngeal space, B. Pyriform sinus, C. Lateral pharyngeal space, D. Pterygomaxillary space
C: Lateral pharyngeal space
Answer: C: Lateral pharyngeal space 
Explanation: Parapharyngeal space is situated on the side of the pharynx. It is pyramidal in shape with the base at the base of the skull and apex at the hyoid bone. It contains carotid vessels, jugular vein, last 4 cranial nerves and cervical sympathetic chain. Ref: Diseases of ENT, PL Dhingra, 7th edition, pg no. 301