Brainstem Anatomy

Medulla Pyramidal Decussation

Fasciculus Cuneatus

Fasciculus Gracilis

Nucleus Cuneatus

Nucleus Gracilis

Spinal Trigeminal Tract

[Darker]

Spinal Trigeminal Nucleus

Pyramid

Pyramidal Decussation

Medulla Obex

Spinal Trigeminal Tract

Spinal Trigeminal Nucleus

Fasciculus Cuneatus

Nucleus Cuneatus

Nucleus Gracilis

Internal Arcuate Fibers

Medial Lemniscus

Pyramid

Inferior Olivary Nucleus

Rostrall Medulla

Inferior Cerebellar Peduncle

[aka "restiform body"]

Spinal Trigeminal Nucleus

Spinal Trigeminal Tract

Reticular Formation

Nucleus Ambiguous

Medial Lemniscus

Pyramid

Inferior Olivary Nucleus

Lateral Nucleus Cuneatus

Pons Facial Nucleus

Middle Cerebellar Peduncle

Spinal Trigeminal Nucleus

Spinal Trigeminal Tract

Tegmentum

Reticular Formation

Pontine Nuclei

Medial Lemniscus

Inferior Cerebellar Peduncle

Facial Nerve

Corticospinal Tract

Basilar Artery

Central Tegmental Tract

Spinal Trigeminal Nucleus

Spinal Trigeminal Tract

Transverse pontine fibers

NOTE the fibers running towards the top of the red section, these are more visible as one moves caudally up the pons

Deep cerebellar nuclei

Deep cerebellar nuclei were not included in brainstorm schematics, note where these are

Pons Trigeminal Nuclei

Fourth Ventricle

Superior Cerebellar Peduncle

Reticular Formation

Medial Lemniscus

Pontine Nuclei

Transverse pontine fibers

also called pontocerebellar fibers

Corticospinal Tract

Corticobulbar and Corticopontine fibers are also in this area

Fourth Ventricle

on brainstorm this is the cerebral aqueduct, but on the ppt this was marked as the _________

Superior Cerebellar Peduncle

Medial Lemniscus

Transverse pontine fibers

also called pontocerebellar fibers

Pontine Nuclei

Corticospinal Tract

Midbrain Inferior Colliculus

Periaqueductal Gray

Inferior Colliculus

Medial Lemniscus

Pontine Nuclei

Superior Cerebellar Peduncle

Cerebral Peduncle

NOTE: the bottom of the highlighted area is the beginning of the _________

Midbrain Superior Colliclulus

Superior Colliculus

Cerebral Aqueduct

Periaqueductal Grey

Medial Lemniscus

Substantia Nigra

Cerebral Peduncle

Decussation of the Superior Cerebellar Peduncle