superior Colliculi

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Related to superior Colliculi: basal ganglia, cerebral peduncle, fovea, pineal gland, pulvinar, pons, red nucleus, Crus cerebri

Colliculi, superior

Two small rounded elevations situated on the dorsal aspects of the midbrain, just below the thalamus. Besides receiving fibres from each other, they receive a small number of axons from the optic tracts and serve as a relay centre for movements of the eyes, head and neck in response to visual and other stimuli. Singular: colliculus. Syn. superior corpora quadrigemina. See brachium; retinotectal pathway; pretectum; Parinaud's syndrome.

References in periodicals archive ?

The largest axis of the colliculi in the human measures 10-12 mm, from the front to the outside, and the transverse axis just 7-8 mm, whereas in the spider monkey the superoinferior diameter of the superior colliculi was 6.15 mm and their transverse diameter 5.45 mm (Fig.

Anatomia cerebral del mono arana Ateles geoffroyi estudiada utilizando imagenes de resonancia magnetica. Primer reporte: estudio comparativo con el cerebro humano Homo Sapiens

The tectum is formed by the superior colliculi which is related to the visual system and the inferior colliculi which are part of the auditory system.[23] The crus cerebri and the tegmentum, also known as the cerebral peduncles, are composed of the corticospinal and corticopontine descending motor tracts.

Brain attack: correlative anatomy

Several small, pitted lesions with dark rims were noted in the neuropil of the thalami, superior colliculi, and hippocampus.

Cryptococcus gattii VGIIb-like variant in white-tailed deer, Nova Scotia, Canada