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Descriptor English: Optic Chiasm
Descriptor Spanish: Quiasma Óptico
Descriptor quiasma óptico
Scope note: Estructura en forma de X formada por la decusación de los dos nervios ópticos. En el quiasma óptico las fibras de la porción medial de cada retina se cruzan hacia el lado opuesto del encéfalo, en tanto que las fibras retinianas laterales continúan en el mismo lado. Como resultado de esta disposición cada hemisferio cerebral recibe información del campo visual contralateral de ambos ojos.
Descriptor Portuguese: Quiasma Óptico
Descriptor French: Chiasma optique
Entry term(s): Chiasm, Optic
Chiasma Opticum
Chiasma Opticums
Chiasma, Optic
Chiasmas, Optic
Chiasms, Optic
Decussation, Optic
Decussations, Optic
Optic Chiasma
Optic Chiasmas
Optic Chiasms
Optic Decussation
Optic Decussations
Opticum, Chiasma
Opticums, Chiasma
Tree number(s): A08.186.211.200.317.578
A08.800.800.120.680.600
RDF Unique Identifier: https://id.nlm.nih.gov/mesh/D009897
Scope note: The X-shaped structure formed by the meeting of the two optic nerves. At the optic chiasm the fibers from the medial part of each retina cross to project to the other side of the brain while the lateral retinal fibers continue on the same side. As a result each half of the brain receives information about the contralateral visual field from both eyes.
Annotation: neopl: coord IM with OPTIC NERVE NEOPLASMS (IM) + histol type of neopl (IM)
Allowable Qualifiers: AB abnormalities
AH anatomy & histology
BS blood supply
CH chemistry
CY cytology
DE drug effects
DG diagnostic imaging
EM embryology
EN enzymology
GD growth & development
IM immunology
IN injuries
ME metabolism
MI microbiology
PA pathology
PH physiology
PP physiopathology
PS parasitology
RE radiation effects
SU surgery
UL ultrastructure
VI virology
Public MeSH Note: 66
History Note: 66(64)
DeCS ID: 10077
Unique ID: D009897
NLM Classification: WW 280
Documents indexed in the Virtual Health Library (VHL): Click here to access the VHL documents
Date Established: 1966/01/01
Date of Entry: 1999/01/01
Revision Date: 2018/06/30
Optic Chiasm - Preferred
Concept UI M0015353
Scope note The X-shaped structure formed by the meeting of the two optic nerves. At the optic chiasm the fibers from the medial part of each retina cross to project to the other side of the brain while the lateral retinal fibers continue on the same side. As a result each half of the brain receives information about the contralateral visual field from both eyes.
Preferred term Optic Chiasm
Entry term(s) Chiasm, Optic
Chiasma Opticum
Chiasma Opticums
Chiasma, Optic
Chiasmas, Optic
Chiasms, Optic
Decussation, Optic
Decussations, Optic
Optic Chiasma
Optic Chiasmas
Optic Chiasms
Optic Decussation
Optic Decussations
Opticum, Chiasma
Opticums, Chiasma



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