Canine Brain Divisions
Lateral View (Dog)
Sheep Median View
Equine Brainstem
Brain Divisions - three different ways to subdivide the brain
1. Embryonic divisions:
• Telencephalon . . .
• Diencephalon . . .
• Mesencephalon . . .
• Metencephalon . . .
• Myelencephalon . . .
2. Gross anatomy divisions:
• Cerebrum . . . (telencephalon)
• Cerebellum . . . (part of metencpehalon)
• Brainstem . . . (di-, mes-, pons, myel-encephalon)
3. Clinically useful divisions:
• Forebrain (telencephalon & diencephalon)
-- mental status; voluntary movement; vision
• Hindbrain (metencephalon & myelencephalon)
-- cerebellum & vestibular syndromes; nerve deficits