Question

Which of the following is MOST likely to result from a lesion in the medial portion of the rostral medulla?

1) Loss of sensation from tympanic cavity
2) Loss of taste from post 1/3 of tongue
3) Loss of function in stylopharyngeus m
4) Loss of sensation in post 1/3 of tongue

Answer 1

A lesion in the medial portion of the rostral medulla is most likely to result in loss of function in stylopharyngeus muscle.

Step-by-step explanation:

A lesion in the medial portion of the rostral medulla is most likely to result in loss of function in stylopharyngeus muscle. The stylopharyngeus muscle is responsible for dilating the pharynx during swallowing and speaking. Therefore, a lesion in this area would disrupt these functions.