This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Brain , Subject name: Anatomy
Brainstem nucleus not derived from the alar plate 
Select and explain. 
A. Dentate, B. Inferior olivary, C. Hypoglossal, D. Substantia nigra
C: Hypoglossal
Answer: C: Hypoglossal 
Explanation: Hypoglossal nucleus is a pure motor nucleus derived from the anterior basal plate neural tube Posterior alar plate gives sensory (not motor) nuclei. Ref: Gray's39e/p-518