BrainRegionLPC MM TRH

Trochlear Nucleus

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This page covers biological details of component Trochlear Nucleus. Region is part of aHuman target integrated biological model.

• Top-down path to region: Midbrain Mesencephalon -> Perhipheral Nuclei of Midbrain Mesencephalon (MM.PER) -> Trochlear Nucleus (LPC.MM.TRH) (see Mind Maps)
• Type: nucleus
• Brain area: Lower Brain - Peripheral Control Area
• Role: relay
• Function: Control superior oblique muscles of eyes
• Notes to function: Muscle nucleus, change eye direction

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Components

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• no child items defined

Connectivity

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Inbound Region Connections:

Source Area	Source Region	Source Name	Type	Reference
LPC	LPC.HT.MVBN	Medial Vestibular Nucleus	excitatory-glu	(unknown reference)
	LPC.HT.SVBN	Superior Vestibular Nuclei	excitatory-glu	(unknown reference)
LRC	LRC.MM.CJ	Cajal Nucleus	excitatory-glu	(unknown reference)
	LRC.MM.SC.DEEP	Deep Superior Colliculus	excitatory-glu	Retina and superior colliculus targets (SC -> Trochlear, abstract)

Outbound Region Connections:

Target Area	Target Region	Target Name	Type	Reference
TSA	TARGET.TSA.EYE	Eye	eye-muscle-rotate-minor	Extraocular eye muscles (TRC -> EYE)

Thirdparty Circuits

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• Extraocular eye muscles - see Reference

• Retina and superior colliculus targets - see Reference

References

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• http://what-when-how.com/neuroscience/the-cranial-nerves-organization-of-the-central-nervous-system-part-4
• http://unifiedtao-en.blogspot.ru/2011/03/what-we-see-of-tao.html