This tutorial explores the glossopharyngeal nerve, a complex cranial nerve responsible for various functions in the head and neck. It covers the nerve's anatomy, including its innervation of structures like the tongue, pharynx, and parotid gland. The tutorial also discusses the nerve's sensory, motor, and parasympathetic functions, and highlights clinical aspects such as the gag reflex. The video concludes with a summary of the nerve's anatomy and functions.

How does the glossopharyngeal nerve interact with the vagus nerve?

What is the significance of the carotid body and carotid sinus in relation to the glossopharyngeal nerve?

Discuss the parasympathetic functions of the glossopharyngeal nerve.

What clinical tests can be performed to assess the integrity of the glossopharyngeal nerve?