olfactory trigone
Acronym: otri
The term olfactory trigone refers to a triangular area on the ventral surface of the forebrain of the human ( Carpenter-1983 ). It is a superficial feature, the floor of which is the olfactory tubercle (also known in the human as the anterior perforated substance). The peak of the triangle faces anteriorly and is formed by what early dissections suggested to be a split of the olfactory tract into medial and lateral olfactory tracts. Later studies showed that the fold of tissue presumed to be a medial olfactory tract did not, in fact, contain neuronal axons. The lateral structure is now recognized as the caudal continuation of the olfactory tract ( Price-1990 ).

Also known as: No other name for this structure has appeared in PubMed.NeuroNames ID : 34

Species Having or Lacking this Structure

All Names & Sources

Internal Structure

Cells Found There

Genes Expressed There

Locus in Brain Hierarchy


Models Where It Appears

Publications About It

BrainInfo                           Copyright 1991-present                          University of Washington