olfactory limb of the anterior commissure

olfactory limb of the anterior commissure (aca)

The term olfactory limb of the anterior commissure refers to one of two parts of the anterior commissure identified on the basis of topology. The other is the temporal limb of the anterior commissure. In the human ( Carpenter-1983 ) and the macaque ( Carmichael-1996 ) it is anterior to, and smaller than the temporal limb. In the rat ( Swanson-2004 ) and mouse ( Hof-2000 ) it is anteroventral to, and considerably larger than the temporal limb.

Also known as: anterior part of the anterior commissure, anterior part of anterior commissure, Commissura anterior, pars anterior, Commissura anterior, pars olfactoria, Commissura rostralis, pars anterior, Commissura anterior, crus anterius, anterior commissure, anterior part, olfactory part of anterior commissure, olfactory limb of anterior commissure, Pars olfactoria commissurae anterioris, anterior commissure, olfactory limb, olfactory limb of the anterior commissure

NeuroNames ID: 206

All Names & Sources

1 of 22

Showing 22 synonym(s) - Use arrows to navigate

Showing 22 synonym(s)

Name:

commissura anteriore (parte anteriore)

Language:

Italian

Organism:

human

Source:

Carpenter-1995

Citation:

EdiSes, s.r.l.- Napoli, 1995

Source Title:

Fondamenti di Neuroanatomia

Name:

porción anterior de la comisura anterior

Language:

Spanish

Organism:

human

Source:

Carpenter-1994

Citation:

edicion 4, Williams & Wilkins, Baltimore; traducción de Editorial Medica Panamericana, Buenos Aires, efectuada por el Dr. Alejandro Kaufman

Source Title:

Neuroanatomía Fundamentos

Name:

anterior part of the anterior commissure

Language:

English

Organism:

human

Source:

Carpenter-1983

Citation:

Baltimore: Williams and Wilkins Co., 1983

Source Title:

Human Neuroanatomy

Name:

anterior part of anterior commissure

Language:

English

Organism:

macaque

Source:

Martin-1997

Citation:

Primate Information Center, University of Washington, Seattle, 1997.

Source Title:

Template Atlas of the Primate Brain

Name:

Commissura anterior, pars anterior

Language:

Latin

Organism:

human

Source:

Nomina-1983

Citation:

Fifth Edition, Williams and Wilkins Co., Baltimore, 1983

Source Title:

Nomina Anatomica

Name:

Commissura anterior, pars olfactoria

Language:

Latin

Organism:

human

Source:

Mai-1997

Citation:

San Diego: Academic Press, 1997

Source Title:

Atlas of the Human Brain

Name:

Commissura rostralis, pars anterior

Language:

Latin

Organism:

human

Source:

Nomina-1983

Citation:

Fifth Edition, Williams and Wilkins Co., Baltimore, 1983

Source Title:

Nomina Anatomica

Name:

Commissura anterior, crus anterius

Language:

Latin

Organism:

human

Source:

Nieuwenhuys-1987

Citation:

Appendix 1 in Encyclopedia Of Neuroscience, George Adelman (Ed.), Birkhaeuser, Boston, 1:A1-A12, 1987

Source Title:

Illustrations of the gross anatomy of the brain

Name:

anterior commissure, anterior part

Language:

English

Organism:

rat

Source:

Bowden-1997

Citation:

Source Title:

A digital Rosetta stone for primate brain terminology

Name:

olfactory part of anterior commissure

Language:

English

Organism:

human

Source:

Roberts-1970

Citation:

Lea & Febiger, Philadelphia, 1970

Source Title:

Atlas Of The Human Brain In Section

Name:

olfactory limb of anterior commissure

Language:

English

Organism:

human

Source:

Mai-1997

Citation:

San Diego: Academic Press, 1997

Source Title:

Atlas of the Human Brain

Name:

olfactory limb of anterior commissure

Language:

English

Organism:

rat

Source:

Bowden-1997

Citation:

Source Title:

A digital Rosetta stone for primate brain terminology

Name:

Pars olfactoria commissurae anterioris

Language:

Latin

Organism:

human

Source:

Roberts-1970

Citation:

Lea & Febiger, Philadelphia, 1970

Source Title:

Atlas Of The Human Brain In Section

Name:

porzione anteriore della commissura anteriore

Language:

Italian

Organism:

human

Source:

Carpenter-1995

Citation:

EdiSes, s.r.l.- Napoli, 1995

Source Title:

Fondamenti di Neuroanatomia

Name:

aca

Language:

acronym

Organism:

macaque

Source:

Martin-2000

Citation:

Elsevier, Amsterdam, 2000

Source Title:

Primate Brain Maps: Structure Of The Macaque Brain

Name:

parte anteriore della commissura anteriore

Language:

Italian

Organism:

human

Source:

Carpenter-1995

Citation:

EdiSes, s.r.l.- Napoli, 1995

Source Title:

Fondamenti di Neuroanatomia

Name:

porción olfatoria de la comisura anterior

Language:

Spanish

Organism:

human

Source:

Carpenter-1994

Citation:

edicion 4, Williams & Wilkins, Baltimore; traducción de Editorial Medica Panamericana, Buenos Aires, efectuada por el Dr. Alejandro Kaufman

Source Title:

Neuroanatomía Fundamentos

Name:

porzione olfattiva della commissura anteriore

Language:

Italian

Organism:

human

Source:

Carpenter-1995

Citation:

EdiSes, s.r.l.- Napoli, 1995

Source Title:

Fondamenti di Neuroanatomia

Name:

передняя часть передней спайки

Language:

Russian

Organism:

human

Source:

Baev-2000

Citation:

Moskva: Meditsina, 2000.

Source Title:

Magnitno-Resonansnaia Tomografiia Golovnogo Mozga: Normal'naia Anatomiia

Name:

aco

Language:

acronym

Organism:

mouse

Source:

Hof-2000

Citation:

Elsevier, Amsterdam, 2000

Source Title:

Comparative Cytoarchitectonic Atlas of the C57BL/6 and 129/Sv Mouse Brains

Name:

anterior commissure, olfactory limb

Language:

English

Organism:

mouse

Source:

Dong-2004

Citation:

Allen Institute for Brain Science, Seattle, WA, 2004

Source Title:

Allen Reference Atlas

Name:

olfactory limb of the anterior commissure

Language:

English

Organism:

Unspecified

Source:

NeuroMorpho

Citation:

Version 5.7, Released: 05/30/2014

Source Title:

NeuroMorpho.Org

Illustrations

Showing 2 illustration(s)

labeled line drawings of
sagittal section in
Macaca fascicularis

multiple views of
3D reconstruction in
Macaca mulatta

Species With The Structure

Equivalent By	Human	Macaque	Rat	Mouse
Topology	Has The Structure	Has The Structure	Has The Structure	Has The Structure

1 of 12

Showing 12 record(s) - Use arrows to navigate

Showing 12 record(s)

Basis:

Topology

Has Equivalent:

Yes

Organism:

Homo sapiens (human)

Their Name:

anterior part of the anterior commissure

Source:

Carpenter-1983

Basis:

Topology

Has Equivalent:

Yes

Organism:

Homo sapiens (human)

Their Name:

Commissura anterior, crus anterius

Source:

Nieuwenhuys-1987

Basis:

Topology

Has Equivalent:

Yes

Organism:

Homo sapiens (human)

Their Name:

Commissura anterior, pars anterior

Source:

Nomina-1983

Basis:

Topology

Has Equivalent:

Yes

Organism:

Homo sapiens (human)

Their Name:

Commissura anterior, pars olfactoria

Source:

Mai-1997

Basis:

Topology

Has Equivalent:

Yes

Organism:

Homo sapiens (human)

Their Name:

Commissura rostralis, pars anterior

Source:

Nomina-1983

Basis:

Topology

Has Equivalent:

Yes

Organism:

Homo sapiens (human)

Their Name:

olfactory limb of anterior commissure

Source:

Mai-1997

Basis:

Topology

Has Equivalent:

Yes

Organism:

Homo sapiens (human)

Their Name:

olfactory part of anterior commissure

Source:

Roberts-1970

Basis:

Topology

Has Equivalent:

Yes

Organism:

Homo sapiens (human)

Their Name:

Pars olfactoria commissurae anterioris

Source:

Roberts-1970

Basis:

Topology

Has Equivalent:

Yes

Organism:

Macaca fascicularis (Macaca fascicularis)

Their Name:

anterior part of anterior commissure

Source:

Martin-1997

Basis:

Topology

Has Equivalent:

Yes

Organism:

Rattus (rat)

Their Name:

anterior commissure, anterior part

Source:

Bowden-1997

Basis:

Topology

Has Equivalent:

Yes

Organism:

Rattus (rat)

Their Name:

olfactory limb of anterior commissure

Source:

Bowden-1997

Basis:

Topology

Has Equivalent:

Yes

Organism:

Mus (mouse)

Their Name:

anterior commissure, olfactory limb

Source:

Dong-2004

Models Where It Appears

Structural CNS Model - Macaque

Brain structures of the macaque are illustrated in BrainInfo’s NeuroMaps macaque brain atlas. Structures are grouped by proximity in a hierarchy corresponding to the central nervous system hierarchy of NeuroNames ( Bowden-1995 Martin-2000 ). Structures in the NeuroMaps atlas are based on the segmentation of an MRI of the brain of a 3-year old male rhesus macaque (Macaca mulatta). The atlas is most useful for targeting structures for implantating electrodes and chemtrodes. Updated 29 Oct 2025.

Functional CNS Model - Rat

The Functional CNS Model - Rat (FMrat) ( Swanson-2004) is one of three hierarchical models representing the internal organization of the central nervous system (CNS). The others are the Structural CNS Model - Human (SThmn) and the Functional CNS Model - Human (FMhmn). The FMrat model represents the basic organization of the mouse ( Hof-2000 AMBA-2024 ) and, presumably, other rodents. Functional CNS models differ from structural models in that structures are defined and named by connectivity rather than by proximity to other structures at the same level. Functional models are more useful for representing longitudinal components of are grouped based on information drawn from multiple neuroscientific disciplines. such as connections, neurochemical characteristics, and role in physiogical and behavioral processes. While the Functional Model was developed primarily for an atlas of the rat brain ( Swanson-2004 ), the hierarchical organization of structures is for the most part applicable to the human, macaque, mouse and other mammalian brains as well. Structures at lower levels of the Functional CNS hierarchy are largely the same as in the Classical and Developmental Models, i.e., they were originally identified by stains for gray matter (Nissl substance) and white matter (myelin). At the next higher level they are grouped into basic connectional and functional systems of the CNS, such as the subcortical sensory systems, the brainstem motor system and the behavioral state system. At the highest levels CNS structures are grouped on the basis of dissection and embryologic precursors into cerebrum ( cerebral cortex and cerebral nuclei ), cerebellum, and cerebrospinal trunk.