septum - BrainInfo

septum (SPT)

The term septum (SPT) refers to a midline structure that separates the lateral ventricles (VNL) in the forebrain (FBR) of the human ( Carpenter, 1983 ), macaque ( Paxinos-2009a ), rat ( Swanson-2004 ) and mouse ( Hof-2000 ). In the human it consists of two parts, the septum pellucidum (spl) and the septal complex (SPX) ( Wikipedia ). The other species lack an spl.

Also known as: septum, Septum, Septum telencephali, Septum pellucidum (BNA,PNA), Massa praecommissuralis, SPT

NeuroNames ID: 255

All Names & Sources

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Showing 11 synonym(s)

English

septum

Andy-1966

English

septum

Andy-1968

English

SPT

NeuroNames

Illustrations

Showing 3 illustration(s)

drawing of
coronal section in
human

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	Relevant Data Not Located	Relevant Data Not Located	Relevant Data Not Located

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Showing 5 record(s)

Basis

Has Equivalent

Organism

Their Name

Source

Topology

Yes

Homo sapiens (human)

Massa praecommissuralis

Riley-1943

Topology

Yes

Homo sapiens (human)

septum

Andy-1968

Topology

Yes

Homo sapiens (human)

Septum

Stephan-1975

Topology

Yes

Homo sapiens (human)

Septum pellucidum (BNA,PNA)

Stephan-1975

Topology

Yes

Homo sapiens (human)

Septum telencephali

Stephan-1975

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.