Olfactory trigone

Olfactory trigone
Brain: Olfactory trigone
Gray732.png
Scheme of rhinencephalon. (Olfactory trigone not labeled, but region is visible at bottom left, between anterior perforated substance and olfactory tract.)
Human brainstem anterior view 2 description.JPG
Human brainstem anterior view. (Olfactory trigone is #4, at upper right)
Latin trigonum olfactorium
Gray's subject #189 827
NeuroNames hier-15
NeuroLex ID birnlex_4042

The olfactory trigone is a small triangular area in front of the anterior perforated substance.

Its apex, directed forward, occupies the posterior part of the olfactory sulcus, and is brought into view by throwing back the olfactory tract.

It is part of the olfactory pathway.[1]

References

  1. ^ Samudralwar DL, Diprete CC, Ni BF, Ehmann WD, Markesbery WR (June 1995). "Elemental imbalances in the olfactory pathway in Alzheimer's disease". J. Neurol. Sci. 130 (2): 139–45. doi:10.1016/0022-510X(95)00018-W. PMID 8586977. http://linkinghub.elsevier.com/retrieve/pii/0022510X9500018W. 

External links

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.

v · d · eHuman brain, cerebrum, Interior of the cerebral hemispheres—Rostral Basal ganglia and associated structures (TA A14.1.09.321–552, GA 9.832–837)
Basal ganglia
Ventral striatum
Other
Rhinencephalon
Olfactory tract (Medial olfactory stria, Lateral olfactory stria) · Olfactory trigone
Other basal forebrain
Diagonal band of Broca · Stria terminalis
Archicortex:
Hippocampal formation/
Hippocampus anatomy

Hippocampus proper: CA1 · CA2 · CA3 · CA4

Dentate gyrus: Fascia dentata

Subiculum
Alveus · Fimbria · Perforant path · Schaffer collateral

M: CNS

anat(n/s/m/p/4/e/b/d/c/a/f/l/g)/phys/devp

noco(m/d/e/h/v/s)/cong/tumr, sysi/epon, injr

proc, drug(N1A/2AB/C/3/4/7A/B/C/D)
v · d · eSensory system: Olfactory system / Olfaction / Rhinencephalon (TA 15.1, GA 10.992)
Olfactory epithelium
Olfactory glands · Olfactory mucosa · Sustentacular cell
Olfactory nerve: 1° neuron
Olfactory nerve: 2° neuron
Mitral cells → Olfactory tract → Olfactory trigone
Lateral olfactory stria/
Primary olfactory cortex

Piriform cortex · EC-hippocampus system (Entorhinal cortex, Hippocampal formation) · Prepyriform area · Periamygdaloid cortex

Stria medullaris → Habenular nuclei

Amygdala → Stria terminalis → Hypothalamus

Medial forebrain bundle → Hypothalamus
Medial olfactory stria

M: OLF

anat, recp

sysi

-



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