Median view of an equine dissected half-brain (medial components of the rhinencephalon have been removed, as has the cerebellum). The
tectum (tec) of the midbrain is dorsal to the
mesencephalic aqueduct (large arrow). The midbrain
tegmentum (teg) is ventral to the aqueduct. To return to the canine midbrain, click
here. To view a sheep brain, click
here.
Labeled telencephalic structures are: caudate nucleus (green), fornix (blue) and interventricular foramen (orange). Labeled diencephalic structures are: pineal body (yellow) and third ventricle (III). A red pick is covered by rostral medullary vellum in the fourth ventricle (IV).