temporal limb of the anterior commissure (tac)

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

Also known as: posterior part of the anterior commissure, posterior part of anterior commissure, Commissura anterior, pars posterior, Commissura rostralis, pars posterior, Commissura anterior, crus posterius, anterior commissure, posterior part, temporal limb of anterior commissure, anterior commissure, temporal limb, temporal limb of the anterior commissure

NeuroNames ID: 207

All Names & Sources

Showing 17 synonym(s)

Name:

act

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:

porción posterior de la comisura anterior

Language:

Spanish

Organism:

human

Citation:

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

Source Title:

Neuroanatomía Fundamentos

Name:

parte posteriore della commissura anteriore

Language:

Italian

Organism:

human

Citation:

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

Source Title:

Fondamenti di Neuroanatomia

Name:

porzione posteriore della commissura anteriore

Language:

Italian

Organism:

human

Citation:

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

Source Title:

Fondamenti di Neuroanatomia

Name:

posterior part of the anterior commissure

Language:

English

Organism:

human

Citation:

Baltimore: Williams and Wilkins Co., 1983

Source Title:

Human Neuroanatomy

Name:

posterior 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 posterior

Language:

Latin

Organism:

human

Source:

Nomina-1983

Citation:

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

Source Title:

Nomina Anatomica

Name:

Commissura rostralis, pars posterior

Language:

Latin

Organism:

human

Source:

Nomina-1983

Citation:

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

Source Title:

Nomina Anatomica

Name:

Commissura anterior, crus posterius

Language:

Latin

Organism:

human

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, posterior part

Language:

English

Organism:

rat

Source:

Bowden-1997

Citation:

Source Title:

A digital Rosetta stone for primate brain terminology

Name:

temporal limb of anterior commissure

Language:

English

Organism:

rat

Source:

Bowden-1997

Citation:

Source Title:

A digital Rosetta stone for primate brain terminology

Name:

acp

Language:

acronym

Organism:

macaque

Source:

Martin-2000

Citation:

Elsevier, Amsterdam, 2000

Source Title:

Primate Brain Maps: Structure Of The Macaque Brain

Name:

задняя 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:

anterior commissure, temporal limb

Language:

English

Organism:

rat

Source:

Swanson-2004

Citation:

Third Edition, Elsevier Academic Press, Oxford, 2004

Source Title:

Brain Maps: Structure of the Rat Brain.

Name:

anterior commissure, temporal limb

Language:

English

Organism:

mouse

Source:

Dong-2004

Citation:

Allen Institute for Brain Science, Seattle, WA, 2004

Source Title:

Allen Reference Atlas

Name:

temporal limb of the anterior commissure

Language:

English

Organism:

human

Citation:

Chapter 1 in Handbook of chemical neuroanatomy: The primate nervous system. Part III (Vol. 15), FE Bloom, A Björklund and T Hökfelt (eds), Elsevier, Amsterdam, 1999

Source Title:

The human basal forebrain. Part I. An overview

Name:

tac

Language:

acronym

Organism:

Unspecified

Source:

NeuroNames

Citation:

University of Washington, Seattle, WA

Source Title:

NeuroNames

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

Showing 10 record(s)

Basis:

Topology

Has Equivalent:

Yes

Their Name:

Commissura anterior, crus posterius

Basis:

Topology

Has Equivalent:

Yes

Their Name:

Commissura anterior, pars posterior

Source:

Nomina-1983

Basis:

Topology

Has Equivalent:

Yes

Their Name:

Commissura rostralis, pars posterior

Source:

Nomina-1983

Basis:

Topology

Has Equivalent:

Yes

Their Name:

posterior part of the anterior commissure

Basis:

Topology

Has Equivalent:

Yes

Their Name:

temporal limb of the anterior commissure

Basis:

Topology

Has Equivalent:

Yes

Their Name:

posterior part of anterior commissure

Source:

Martin-1997

Basis:

Topology

Has Equivalent:

Yes

Organism:

Rattus (rat)

Their Name:

anterior commissure, posterior part

Source:

Bowden-1997

Basis:

Topology

Has Equivalent:

Yes

Organism:

Rattus (rat)

Their Name:

anterior commissure, temporal limb

Source:

Swanson-2004

Basis:

Topology

Has Equivalent:

Yes

Organism:

Rattus (rat)

Their Name:

temporal limb of anterior commissure

Source:

Bowden-1997

Basis:

Topology

Has Equivalent:

Yes

Organism:

Mus (mouse)

Their Name:

anterior commissure, temporal 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.