olfactory nerve - BrainInfo

olfactory nerve (1n)

The term olfactory nerve (OLN) refers to the very short first cranial nerve. Defined topologically and histologically, it consists of unmyelinated axons that project from main olfactory receptor neurons (OSNm) and accessory olfactory receptor neurons (OSNa) in olfactory epithelium (OLE) of the nasal cavity. Multiple tiny bundles of axons pass through the cribriform plate, the thin boney roof of the nasal cavity, into the main olfactory bulb (MOB) and accessory olfactory bulb (AOB). In the humans ( Buck-2013 ) and macaques ( Price-2004 ), they enter the ventral surface of the MOB. In the mouse ( Hof-2000, Franklin-2008 ), they envelop the MOB and enter the ventral, medial and lateral sides of it. In the rat ( Swanson-2004, Paxinos-2009b ). In humans and macaques, where the olfactory tract is far more prominent than the fine short OLN, the term 'olfactory nerve' is commonly used in reference to the olfactory tract (oltr). As a long compact myelinated (white) structure, the oltr appears more like a 'real nerve', but it is not the first nerve in the olfactory system (OSY), which is a short, diffuse, unmyelinated.structure. Functionally, the OLN is the primary receptor element of the olfactory system (OSY). Final 30 2025.

Also known as: olfactory nerve, Nervus olfactorius, Nerve I, first cranial nerve, Fila olfactoria, olfactory fila, olfactoria fila, olfactory nerve layer

NeuroNames ID: 32

All Names & Sources

1 of 21

Showing 21 synonym(s) - Use arrows to navigate

Showing 21 synonym(s)

Name:

nervo I

Language:

Italian

Organism:

human

Source:

Carpenter-1995

Citation:

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

Source Title:

Fondamenti di Neuroanatomia

Name:

I. Hirnnerv

Language:

German

Organism:

human

Source:

Schiebler-1999

Citation:

Eighth Edition, Springer Verlag, Berlin, 1999.

Source Title:

Anatomie

Name:

saraf otak pertama

Language:

Indonesian

Organism:

human

Source:

Noback-1982

Citation:

Jakarta: Penerbit Buku Kedokteran EGC, 1982

Source Title:

Anatomi Susunan Saraf Manusia, Prinsip-Prinsip Dasar Neurobiologi

Name:

Language:

acronym

Organism:

Unspecified

Source:

NeuroNames

Citation:

University of Washington, Seattle, WA

Source Title:

NeuroNames

Name:

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:

обонятельный нерв

Language:

Russian

Organism:

human

Source:

Savel'ev-1996

Citation:

AREA XVII, Moscow, 1996.

Source Title:

Stereoskopicheskii Atlas Mozga Cheloveka

Name:

nervus olfactorius

Language:

Indonesian

Organism:

human

Source:

Noback-1982

Citation:

Jakarta: Penerbit Buku Kedokteran EGC, 1982

Source Title:

Anatomi Susunan Saraf Manusia, Prinsip-Prinsip Dasar Neurobiologi

Name:

Language:

acronym

Organism:

rat

Source:

Swanson-1998

Citation:

Second Revised Edition, Elsevier Science, Amsterdam, 1998

Source Title:

Brain Maps: Structure of the Rat Brain

Name:

nervo olfattivo

Language:

Italian

Organism:

human

Source:

Rigutti-2000

Citation:

Giunti Gruppo Editoriale, Firenze, Italy 2000

Source Title:

Atlante di Anatomia

Name:

olfactory nerve

Language:

English

Organism:

human

Source:

Carpenter-1983

Citation:

Baltimore: Williams and Wilkins Co., 1983

Source Title:

Human Neuroanatomy

Name:

Nervus olfactorius

Language:

Latin

Organism:

human

Source:

Nomina-1983

Citation:

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

Source Title:

Nomina Anatomica

Name:

Nerve I

Language:

English

Organism:

human

Source:

Carpenter-1983

Citation:

Baltimore: Williams and Wilkins Co., 1983

Source Title:

Human Neuroanatomy

Name:

first cranial nerve

Language:

English

Organism:

human

Source:

Carpenter-1983

Citation:

Baltimore: Williams and Wilkins Co., 1983

Source Title:

Human Neuroanatomy

Name:

Fila olfactoria

Language:

Latin

Organism:

human

Source:

Carpenter-1983

Citation:

Baltimore: Williams and Wilkins Co., 1983

Source Title:

Human Neuroanatomy

Name:

Riechnerv

Language:

German

Organism:

human

Source:

Schiebler-1999

Citation:

Eighth Edition, Springer Verlag, Berlin, 1999.

Source Title:

Anatomie

Name:

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:

Hirnnerv I

Language:

German

Organism:

human

Source:

Schiebler-1999

Citation:

Eighth Edition, Springer Verlag, Berlin, 1999.

Source Title:

Anatomie

Name:

olfactory fila

Language:

English

Organism:

human

Source:

Crosby-1962

Citation:

New York: MacMillan, 1962

Source Title:

Correlative Anatomy of the Nervous System

Name:

olfactoria fila

Language:

English

Organism:

human

Source:

Carpenter-1983

Citation:

Baltimore: Williams and Wilkins Co., 1983

Source Title:

Human Neuroanatomy

Name:

olfactory nerve layer

Language:

English

Organism:

mouse

Source:

Franklin-2008

Citation:

Compact Third Edition, Amsterdam: Elsevier Academic Press

Source Title:

The Mouse Brain in Stereotaxic Coordinates

Name:

Language:

acronym

Organism:

Unspecified

Source:

NeuroNames

Citation:

University of Washington, Seattle, WA

Source Title:

NeuroNames

Illustrations

Showing 1 illustration(s)

drawing of
cross section in
human

Species With The Structure

Equivalent By	Human	Macaque	Rat	Mouse
Topology	Has The Structure	Relevant Data Not Located	Has The Structure	Has The Structure

1 of 9

Showing 9 record(s) - Use arrows to navigate

Showing 9 record(s)

Basis:

Topology

Has Equivalent:

Yes

Organism:

Homo sapiens (human)

Their Name:

Fila olfactoria

Source:

Carpenter-1983

Basis:

Topology

Has Equivalent:

Yes

Organism:

Homo sapiens (human)

Their Name:

first cranial nerve

Source:

Carpenter-1983

Basis:

Topology

Has Equivalent:

Yes

Organism:

Homo sapiens (human)

Their Name:

Nerve I

Source:

Carpenter-1983

Basis:

Topology

Has Equivalent:

Yes

Organism:

Homo sapiens (human)

Their Name:

Nervus olfactorius

Source:

Nomina-1983

Basis:

Topology

Has Equivalent:

Yes

Organism:

Homo sapiens (human)

Their Name:

olfactoria fila

Source:

Carpenter-1983

Basis:

Topology

Has Equivalent:

Yes

Organism:

Homo sapiens (human)

Their Name:

olfactory fila

Source:

Crosby-1962

Basis:

Topology

Has Equivalent:

Yes

Organism:

Homo sapiens (human)

Their Name:

olfactory nerve

Source:

Carpenter-1983

Basis:

Topology

Has Equivalent:

Yes

Organism:

Rattus (rat)

Their Name:

olfactory nerve

Source:

Price-1990

Basis:

Topology

Has Equivalent:

Yes

Organism:

Mus (mouse)

Their Name:

olfactory nerve

Source:

Price-1990

Models Where It Appears

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.