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Brainstem Areas/ Syndromes [ Supplied ]

Brainstem Areas Diagram - click to view

Diagram

Vertebral-basilar branches supply these key functional areas: 

Region Medial Structures Dorsolateral Structures 
Rostral Midbrain

 Pyramidal tracts(PT) in cerebral peduncle
 Superior cerebellar peduncle (SCP)
 Oculomotor nucleus/ 3rd nerve
 Medial longitudinal fasciculus (MLF)
 Reticular formation(RF)

 
Mid-Pons

 Medial longitudinal fasciculus (MLF)
 Reticular formation(RF)
 Pyramidal tracts(PT)

 Middle cerebellar peduncle (MCP)
 Trigeminal sensory and motor nuclei/5th nerve

Caudal
Pons

 Abducens nerve/ 6th nerve
 Motor fibers of 7th nerve
 PPRF-lateral gaze center
 Pyramidal tracts(PT)

 Facial motor nucleus/7th nerve
 Middle cerebellar peduncle (MCP)
 Descending tract/nucleus of 5th nerve
 Spinothalamic tract(ST) 
 Vestibular(VN) and Cochlear nuclei/
8th nerve

Rostral
Medulla

 Hypoglossal nucleus/12th nerve
 Pyramidal tracts
 Medial lemniscus

 Nucleus ambiguus
 Exiting 9th and 10th nerves
 Descending tract/ nucleus of 5th nerve
 Spinothalamic tract(ST) 
 Vestibular nuclei (VN)
 Inferior cerebellar peduncle (ICP)