Quick Facts
These paired elevations of the midbrain tectum are important in reflex movements of the eye, head and neck. It is involved in visual reflex pathway, particularly the pupillary light reflex where pupils constrict when bright light hits the retina.
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Superior Colliculus
The superior colliculus is a laminar, midbrain structure in which each layer is nominally devoted to integrating sensory and motor information relevant to a particular sensory modality.