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What (who) is quadrigeminal - definition
Quadrigeminal
·adj ·Alt. of Quadrigeminous.
Superior cistern
SPACE IN THE SKULL
Cisterna venae magnae cerebri; Cisterna ambiens; Cisterna superioris; Quadrigeminal cistern; Cistern of great cerebral vein
The superior cistern (cistern of great cerebral vein, quadrigeminal cistern, Bichat's canal) is a dilation as a subarachnoid cistern of the subarachnoid space around the brain. It lies between the splenium of the corpus callosum and the superior surface of the cerebellum.
Superior colliculus
![The brain of a [[cod]], with the optic tectum highlighted](https://commons.wikimedia.org/wiki/Special:FilePath/Cod brain showing tectum.png?width=200 "The brain of a [[cod]], with the optic tectum highlighted")
![Drawing by [[Ramon y Cajal]] of several types of Golgi-stained neurons in the optic tectum of a sparrow.](https://commons.wikimedia.org/wiki/Special:FilePath/SparrowTectum.jpg?width=200 "Drawing by [[Ramon y Cajal]] of several types of Golgi-stained neurons in the optic tectum of a sparrow.")
![Scheme showing central connections of the [[optic nerve]]s and optic tracts. (Superior colliculus visible near center.)](https://commons.wikimedia.org/wiki/Special:FilePath/Gray722.png?width=200 "Scheme showing central connections of the [[optic nerve]]s and optic tracts. (Superior colliculus visible near center.)")
STRUCTURE IN THE MAMMALIAN MIDBRAIN
Superior colliculi; Superior collici; Optic tectum; Brachium of the superior colliculus; Brachium of superior colliculus; Superior brachium; Brachium colliculi superioris; Parabigeminal nucleus; Brachium quadrigeminum superius; Superior quadrigeminal brachium; Superior brachia; Superior quadrigeminal brachia; Nucleus isthmi
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.
