Superior colliculus
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In neuroanatomy, the superior colliculus is a structure lying on the roof of the mammalian midbrain. In non-mammalian vertebrates, the homologous structure is known as the optic tectum or optic lobe.
H&E stain of chicken optic tectum at E7 (embryonic day 7) showing the generative zone (GZ), the migrating zone (MZ) and the first neuronal lamina (L1). Scale bar 200 μm. From Caltharp et al., 2007.
Drawing by Ramon y Cajal of several types of Golgi-stained neurons in the optic tectum of a sparrow.
Superior colliculus (coronal section)
Brainstem. Posterior view.
Lateral geniculate nucleus
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In neuroanatomy, the lateral geniculate nucleus is a structure in the thalamus and a key component of the mammalian visual pathway. It is a small, ovoid, ventral projection of the thalamus where the t
Superior colliculus
…superior colliculus, and, passing to the thalamus between the pulvinar and the medial geniculate nuclei, is partly continued into an eminence called the lateral geniculate nucleus, and partly into the optic tract. The superior colliculus is associated with a nearby structure called the parabigeminal nucleus, often referred to as…
3D schematic representation of optic tracts