MRCP UK EXAMINATIONS

NEUROLOGY

PERIPHERAL NEUROPATHY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
X-Vagus
A
Speech and swallowing
B
cranial and spinal branches
C
moves eye
D
None of the above
Explanation: 

Detailed explanation-1: -The vagus nerve gives off branches which control voice production, swallowing and breathing. The vagus nerve branch which controls voice production is the recurrent laryngeal nerve. The superior laryngeal nerve also branches from the vagus nerve and participates in swallowing.

Detailed explanation-2: -The vagus nerve innervates the intrinsic musculature of the larynx. The spinal accessory nerve innervates the palatopharyngeus muscle, which depresses the velum and constricts the pharynx. It is responsible for vocal fold adduction during swallowing.

Detailed explanation-3: -The vagal nerve (VN), the tenth cranial nerve, provides both motor and sensory innervation, and plays an important role in the pharyngeal phase of swallowing [4, 6].

Detailed explanation-4: -Damage to the vagus nerve can result in a range of symptoms because the nerve is so long and affects many areas. Potential symptoms of damage to the vagus nerve include: difficulty speaking. loss or change of voice.

There is 1 question to complete.