Medical Subject Headings

Last uploaded: March 22, 2026
Id http://purl.bioontology.org/ontology/MESH/D008636
http://purl.bioontology.org/ontology/MESH/D008636
Preferred Name

Mesencephalon

Definitions
The middle of the three primitive cerebral vesicles of the embryonic brain. Without further subdivision, midbrain develops into a short, constricted portion connecting the PONS and the DIENCEPHALON. Midbrain contains two major parts, the dorsal TECTUM MESENCEPHALI and the ventral TEGMENTUM MESENCEPHALI, housing components of auditory, visual, and other sensorimoter systems.
Synonyms
Midbrain
Mesencephalons
Midbrains
Type http://www.w3.org/2002/07/owl#Class
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