Corpora quadrigemina
Encyclopedia
In the brain
, the corpora quadrigemina (Latin for "quadruplet bodies") are the four colliculi—two inferior
, two superior
—located on the tectum of the dorsal aspect of the midbrain.They are respectively named the inferior and superior colliculus.
The corpora quadrigemina are reflex centers involving vision and hearing.
Brain
The brain is the center of the nervous system in all vertebrate and most invertebrate animals—only a few primitive invertebrates such as sponges, jellyfish, sea squirts and starfishes do not have one. It is located in the head, usually close to primary sensory apparatus such as vision, hearing,...
, the corpora quadrigemina (Latin for "quadruplet bodies") are the four colliculi—two inferior
Inferior colliculus
The inferior colliculus is the principal midbrain nucleus of the auditory pathway and receives input from several more peripheral brainstem nuclei in the auditory pathway, as well as inputs from the auditory cortex...
, two superior
Superior colliculus
The optic tectum or simply tectum is a paired structure that forms a major component of the vertebrate midbrain. In mammals this structure is more commonly called the superior colliculus , but, even in mammals, the adjective tectal is commonly used. The tectum is a layered structure, with a...
—located on the tectum of the dorsal aspect of the midbrain.They are respectively named the inferior and superior colliculus.
The corpora quadrigemina are reflex centers involving vision and hearing.