Neuro: Brainstem

Question 1

What nuclei are in the midbrain?

Answer 1

• oculomotor
• trochlear
• mesencephalic

Question 2

What nuclei are in the pons?

Answer 2

• abducens (6)
• facial (7)
• motor trigeminal (5)
• sensory trigeminal (5)
• spinal trigeminal (11)

Question 3

What nuclei are in the medulla?

Answer 3

• hypoglossal
• vagus
• vestibular
• solitary nuc
• nuc ambiguus
• spinal trigeminal

Question 4

What blood vessel services the ventral spinal cord and medulla?

Answer 4

anterior spinal

Question 5

What are some signs of damage to the trigeminal root?

Answer 5

• paralysis of masticatory muscles
• loss of pain, thermal sense, discriminative tough on face
• loss of afferent limb of corneal reflex on the left

Question 6

What are signs of damage to the facial nerve?

Answer 6

• paralysis of upper and lower facial muscles (on sam

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