Medulla - Part 2 Flashcards
o Replaced the inferior vestibular nucleus
Lateral vestibular nucleus
o Visible on the anterior and posterior surfaces
of the inferior cerebellar peduncle
Cochlear nuclei
T or F. No decussation at the dorsal column
T
The level of decussation of lemnisci is _______ to the
central gray matter and posterior to the pyramids
anterior
T or F. The reticular formation is present at ALL levels
T
4 Medial structures
Motor pathways
Medial Lemniscus
Medial Longitudinal Fasciculus
Motor nucleus and nerve
Lesion on motor pathway
contralateral
Lesion on medial lemniscus
contralateral
Medial longitudinal fasciculus lesion
ipsilateral
Motor nucleus and nerve lesion
ipsilateral
4 lateral structures
Spinocerebellar pathway
Spinothalamic pathway
Sensory nucleus of CN 5
Sympathetic pathway
Lesions in: Spinocerebellar pathway Spinothalamic pathway Sensory nucleus of CN 5 Sympathetic pathway
Ipsilateral
Contralateral
Ipsilateral
Ipsilateral
pathways that pass through the entire length of the brainstem are called _______
meridians of longitude
cranial nerves that pass through the entire length of the brainstem are called _______
parallels of latitude
4 cranial nerves in the medulla
CN 9-12
Lesions in cranial nerves of medulla
Ipsilateral
4 cranial nerves in the pons
CN 5-8
Lesions in cranial nerves of pons
Ipsilateral
What is the motor nerve in the midline of the medulla?
CN 12
What is the motor nerve in the medial pons?
CN 6
4 cranial nerves above the pons
CN 1-4
What are the motor nerves in the midbrain?
CN 3 and 4
What is a motor nerve that carries pathways of taste?
CN 7
