#summary Principal Pretectal Nucleus
@@[Home] -> [BiologicalLifeResearch] -> [BrainAreaLRC] -> [BrainRegionLRC_MM_PT_PR]
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This page covers biological details of component Principal Pretectal Nucleus.
Region is part of aHuman target integrated biological model.

  * *Top-down path to region*: Midbrain Mesencephalon -> [BrainCenterMM_REF Reflexes Nuclei of Midbrain Mesencephalon] (MM.REF) -> Visual Reflexes Nuclei of Midbrain Mesencephalon (MM.REF.VIS) -> Pretectum (MM.PT) -> [BrainRegionLRC_MM_PT_PR Principal Pretectal Nucleus] (LRC.MM.PT.PR) (see [OverallMindMaps Mind Maps])
  * *Type*: nucleus
  * *Quality*: L0
  * *Brain area*: [BrainAreaLRC Lower Brain - Motor Reflex Area] (LRC)
  * *Area circuit*: Postural Control Reflexes (LRP)
  * *Role*: processor.automatic
  * *Function*: Pupillary light reflex
  * *Comments*: Medial pretectal nucleus
  * *Notes to function*: 
   * Affected by visual cortex and projects to EWN
(generated)
= Components =
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  * no child items defined

= Connectivity =
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http://ahuman.org/svn/ahwiki/images/dot/LRC.MM.PT.PR.dot.png

*Inbound Region Connections:*

|| *Source Area* || *Source Region* || *Source Name* || *Type* || *Role* || *Reference* ||
|| [BrainAreaLRC LRC] || [BrainRegionLRC_HT_CR_FG LRC.HT.CR.FG] || Fastigual Nucleus || excitatory-glu || uncertain ||(unknown reference) ||

*Outbound Region Connections:*

|| *Target Area* || *Target Region* || *Target Name* || *Type* || *Role* || *Reference* ||
|| [BrainAreaLAC LAC] || [BrainRegionLAC_MM_EWN LAC.MM.EWN] || Edinger-Westphal Nucleus || excitatory-glu || uncertain || [http://neuroscience.uth.tmc.edu/s3/chapter07.html Eye blink reflex and pupillary light reflex (Pretectum -> EWN, abstract)] ||

= Thirdparty Circuits =
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  * [http://usvn.ahuman.org/svn/ahwiki/images/wiki/research/biomodel/oculomotor.jpg Eye blink reflex and pupillary light reflex] - see [http://neuroscience.uth.tmc.edu/s3/chapter07.html Reference] (CP.SACCADIC-MOTOR-CONTROL)

 Abducens=[BrainRegionLPC_HT_ABD Abducens Nucleus,LPC.HT.ABD]
 Ciliary=[BrainRegionLAC_PN_PSYM_CLG Ciliary Ganglion,LAC.PN.PSYM.CLG]
 EWN=[BrainRegionLAC_MM_EWN Edinger-Westphal Nucleus,LAC.MM.EWN]
 EYE=[BrainRegionTARGET_TSA_EYE Eye,TARGET.TSA.EYE]
 Facial=[BrainRegionLPC_HT_FCM Facial Motor Nucleus,LPC.HT.FCM]
 Oculomotor=[BrainRegionLPC_MM_OCN Oculomotor Nucleus,LPC.MM.OCN]
 Pretectum=Pretectum,MM.PT (see [BrainCenterMM_REF Reflexes Nuclei of Midbrain Mesencephalon])
 PrincipalTrigeminal=[BrainRegionLPC_HT_PN_PTR Principal Trigeminal Nucleus,LPC.HT.PN.PTR]
 RF=[BrainCenterHT_RF Pontine Reticular Formation,HT.RF]
 SpinalTrigeminal=[BrainRegionLPC_HL_TGS_STR Spinal Trigeminal Nucleus,LPC.HL.TGS.STR]
 SupraOculomotor=Supraoculomotor Area,VBA.MM.SOA (see [BrainCenterMM_REF Reflexes Nuclei of Midbrain Mesencephalon])
 VAC=Associative Visual Cortex,NPE.NC.OCC.V3 (see [BrainCenterNC_LOBE_OCC Occipital Lobe])
<img src="http://usvn.ahuman.org/svn/ahwiki/images/wiki/research/biomodel/oculomotor.jpg" alt="unavailable" style="max-width: 100%;">


= References =
(generated)

  * http://neuroscience.uth.tmc.edu/s3/chapter07.html