basal pons (PONb)

The term basal pons (PONb) refers to the most ventral of three parts of the pons defined by dissection. The other parts are the fourth ventricle (4V) and the pontine tegmentum (PONt). Found in the human ( Carpenter-1983 ), the macaque ( Martin-2000 ), the rat ( Swanson-2004 ) and the mouse ( Hof-2000 ), it is composed of pontine nuclei (PONn), longitudinal pontine fibers (lpf), transverse pontine fibers (tpf) and the middle cerebellar peduncle (mcp) ( Carpenter-1983 ). .Updated 25 Apr 2025.

Also known as: basal part of pons, basal part of the pons, Pars basilaris pontis, Pars ventralis pontis, pons proper, ventral portion of pons, base of pons, basal portion of pons, Basis pontis, Pars anterior pontis, basilar pons, basilar part of pons, basal pons

NeuroNames ID: 616

All Names & Sources
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Language
Name
Source
English
basal part of pons
Carpenter-1983
English
basal part of the pons
Martin-1997
English
basal pons
NeuroNames
English
basal portion of pons
Crosby-1962
English
base of pons
Crosby-1962
English
basilar part of pons
Wikipedia-2024a
English
basilar pons
Neafsey-1999
English
pons proper
Carpenter-1983
English
ventral portion of pons
Carpenter-1983
Illustrations

Showing 3 illustration(s)

Illustration thumbnail

myelin stain & diagram of
all aspects in
human

Illustration thumbnail

labeled line drawings of
sagittal section in
Macaca fascicularis

Illustration thumbnail

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 Relevant Data Not Located Relevant Data Not Located
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Basis
Has Equivalent
Organism
Their Name
Source
Topology
Yes
Homo sapiens (human)
basal part of pons
Carpenter-1983
Topology
Yes
Homo sapiens (human)
basal portion of pons
Crosby-1962
Topology
Yes
Homo sapiens (human)
base of pons
Crosby-1962
Topology
Yes
Homo sapiens (human)
basilar part of pons
Wikipedia-2024a
Topology
Yes
Homo sapiens (human)
basilar pons
Neafsey-1999
Topology
Yes
Homo sapiens (human)
Basis pontis
Anthoney-1994
Topology
Yes
Homo sapiens (human)
Pars anterior pontis
Nomina-1989
Topology
Yes
Homo sapiens (human)
Pars ventralis pontis
Nomina-1983
Topology
Yes
Homo sapiens (human)
pons proper
Carpenter-1983
Topology
Yes
Homo sapiens (human)
ventral portion of pons
Carpenter-1983
Topology
Yes
Macaca fascicularis (Macaca fascicularis)
basal part of the pons
Martin-1997
Topology
Yes
Macaca fascicularis (Macaca fascicularis)
Pars basilaris pontis
Shantha-1968
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.

brain
forebrain
midbrain
hindbrain
metabrain (metencephalon)
pons
pontine tegmentum
basal pons (basal part of the pons)
fourth ventricle
cerebellum
medulla
cisterna magna (cerebellomedullary cistern)
choroidal fissure
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