colliculus


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to colliculus: seminal colliculus

colliculus

[kə′lik·yə·ləs]
(anatomy)
Any of the four prominences of the corpora quadrigemina.
The anterolateral, apical elevation of the arytenoid cartilages.
(neuroscience)
The elevation of the optic nerve where it enters the retina.
References in periodicals archive ?
The deep posterior talotibial ligament originates from the intra-articular aspect of the posterior colliculus and inserts on the medial talus.
Extremely thin wires were inserted into an owl's inferior colliculus to find the neurons in the brain's "space map" that correspond to a particular point in space.
Our work shows that the superior colliculus is involved in the selection of things we will respond to, either by looking at them or by thinking about them.
There is evidence that diffuse injury disrupts neural pathways or networks that serve attention, such as the parietal lobe, thalamic structures, superior colliculus, pulvinar, dorso-lateral frontal cortex, and anterior cingulus.
The majority of the ascending projections from each auditory nerve cross the brainstem at the pons to innervate the contralateral midbrain at the level of the inferior colliculus, from which projections extend to the medial geniculate nucleus of the thalamus and eventually reach the temporal cortex on the opposite side of the brain from the cochlea, providing the initial sensory encoding [21].
Some nerves leaving the eye do not synapse in the lateral geniculate nucleus (LGN) but travel on to the superior colliculus and pretectal nuclei.
The researchers have recently discovered that activation of a primitive brain region, the deep layers of superior colliculus (DLSC), elicits defensive behaviours such as an exaggerated startle, hypervigilance, cowering, and escape.
The nicotinic receptor is the fast ion channel-gated receptor primarily found at the neuromuscular junction, spinal cord and superior colliculus.
And at the University of California at San Diego, philosopher and theoretical biologist Paul Churchland has modeled the superior colliculus, a brain region involved in such feats as grabbing a glass of water.
He discovered that in the inferior colliculus of the brain of the barn owl there is a map of auditory space and he identified the computational principles and the neural mechanisms that underlie the workings of the map.
The oculomotor nuclei extend most of the rostrocaudal length of the upper midbrain at the level of the superior colliculus.