4 structures in the midline beginning with M
- motor pathway (corticospinal)
- medial lemniscus
- motor nuclei for cranial nerves
- medial longitudinal fasciculus
4 lateral structures beginning with S
- Spinocerebellar
- Spinothalamic
- Sensory nucleus of CN V
- Sympathetic pathway
4 cranial nerves in medulla, pons + above the pons (2 in midbrain)
- I, II (above), III, IV in midbrain
- V, VI, VII, VIII in pons
- IX, X, XI, XII in medulla
4 motor cranial nerve nuclei in midline divide into 12 (except I + II)
- so III, IV, VI, XII
- therefore V, VII, IX, XI are in lateral brainstem