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Olivary pretectal nucleus

Name: Olivary pretectal nucleus
Description: Small distinct nucleus in the pretectum of mammals involved in the pupillary light reflect. In rats, it is an olive shaped (anterior) nucleus lying ventral to the brachium of the superior colliculus (Paxinos, The rat nervous system, 2nd ed, 1995, pg. 862). Physiologically, it is identified by neurons sensitive to luminance changes.[1]
Is part of: pretectum
Abbreviation: OPT
Super-category: Regional part of brain
URL: Scalia, F. 1972 The termination ofretinal axons in the pretectal region of mammals. J. Comp. Neurol. 145,223-253.
Id: birnlex_1037
Defining criteria: myelo-architecture
Organism: mammal
Link to OWL / RDF: Download this content as OWL/RDF
Neuronames ID ( what's this?): 455
Defining Criteria: myelo-architecture
Myelo-architecture defining Criteria: Anterior dorsal part of the nucleus is characterized by an almost complete lack of myelinated fibers, giving it a pale appearance. The posterior portion of the nucleus is less distinct. [2]
Brain regions that send axons into this region: retina [2]
Brain regions that receive axons from this region: Parvocellular oculomotor nucleus [2]


References

  1. Klooster J et al. (1995) Efferent projections of the olivary pretectal nucleus in the albino rat subserving the pupillary light reflex and related reflexes. A light microscopic tracing study. Brain Res 688: 34-46 PubMed
  2. 2.0 2.1 2.2 Campbell G & Lieberman AR (1985) The olivary pretectal nucleus: experimental anatomical studies in the rat. Philos Trans R Soc Lond B Biol Sci 310: 573-609 PubMed


  • This visualization was created by the Scalable Brain Atlas group and is based on the Rhesus Monkey - Paxinos et al. 2000

thumbnail.php?template=PHT00&size=L&dim=2d3d&region=OPT&type=.png

Notes

This page uses this default form:PONS_brain_region



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Facts about Olivary pretectal nucleusRDF feed
AbbrevOPT  +
AfferentProjectionsRetina  +
Created15 July 2006  +
CurationStatusuncurated  +
DefiningCitationScalia, F. 1972 The termination ofretinal axons in the pretectal region of mammals. J. Comp. Neurol. 145,223-253.  +
DefiningCriteriamyelo-architecture  +
DefinitionSmall distinct nucleus in the pretectum of Small distinct nucleus in the pretectum of mammals involved in the pupillary light reflect. In rats, it is an olive shaped (anterior) nucleus lying ventral to the brachium of the superior colliculus (Paxinos, The rat nervous system, 2nd ed, 1995, pg. 862). Physiologically, it is identified by neurons sensitive to luminance changes. by neurons sensitive to luminance changes.
EfferentProjectionsParvocellular oculomotor nucleus  +
Has default formThis property is a special property in this wiki.PONS brain region  +
Idbirnlex_1037  +
Is part ofPretectum  +
LabelOlivary pretectal nucleus  +
ModifiedDate9 March 2012  +
MyeloDefiningCriteriaAnterior dorsal part of the nucleus is characterized by an almost complete lack of myelinated fibers, giving it a pale appearance. The posterior portion of the nucleus is less distinct.
NeuronamesLinkhttp://braininfo.rprc.washington.edu/Scripts/hiercentraldirectory.aspx?ID=455  +
Page has default formThis property is a special property in this wiki.PONS brain region  +
SpeciesMammal  +
SuperCategoryRegional part of brain  +
UmlscuiC0175359  +