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The brachium of superior colliculus (or superior brachium) is a branch that extends laterally from the 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.
Download as PDF; Printable version; In other projects ... Function. This small artery supplies the superior colliculus, inferior colliculus, and tectum of midbrain. ...
Print/export Download as PDF; Printable version ... Nuclei colliculi superioris are groups of large cells in the middle gray layer of the superior colliculus and more ...
The cerebral aqueduct (aqueduct of the midbrain, aqueduct of Sylvius, Sylvian aqueduct, mesencephalic duct) is a small, narrow tube connecting the third and fourth ventricles of the brain. [ 1 ] [ 2 ] The cerebral aqueduct is a midline structure that passes through the midbrain .
It forms the floor of the midbrain that surrounds below the cerebral aqueduct as well as the floor of the fourth ventricle while the midbrain tectum forms the roof of the fourth ventricle. The tegmentum contains a collection of tracts and nuclei with movement-related, species-specific, and pain-perception functions.
The brain area responsive to motion in the human brain is called V5 or hMT. Many approaches have been examined to reveal the underlying mechanisms of blindsight. In the past it has been shown that superior colliculus ablation has an effect on V1-independent vision, which in turn advocates the role of the superior colliculus for blindsight.
The midbrain tegmentum is the part of the midbrain extending from the substantia nigra to the cerebral aqueduct in a horizontal section of the midbrain. Structures included in the midbrain tegmentum include the red nucleus, reticular formation, and substantia nigra.
The cerebral crus (crus cerebri.crus means ‘leg’ in Latin.) is the anterior portion of the cerebral peduncle which contains the motor tracts, traveling from the cerebral cortex to the pons and spine.