Question

Which cranial nerve is most responsible for talking and coughing?

1) Vagus nerve (CN X)
2) Optic nerve (CN II)
3) Facial nerve (CN VII)
4) Glossopharyngeal nerve (CN IX)

Answer 1

The glossopharyngeal nerve (CN IX) is most responsible for talking and coughing. It controls the muscles in the oral cavity and upper throat, which are essential for speech and coughing.

Step-by-step explanation:

The glossopharyngeal nerve (CN IX) is most responsible for talking and coughing. It controls the muscles in the oral cavity and upper throat, which are essential for speech and coughing.

The glossopharyngeal nerve is also involved in taste sensation and the production of saliva.