- Olfactory trigone
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Brain: Olfactory trigone 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. (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
- ^ 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
- olfactory+trigone at eMedicine Dictionary
- Atlas of anatomy at UMich n1a8p1 - "Interpeduncular fossa" (#7)
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 As such, some of the information contained within it may be outdated.
Human 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 striatumOtherInternal capsule (Anterior limb · Genu · Posterior limb, Optic radiation)
Corona radiata · External capsule · Extreme capsule
Pallidothalamic tracts: Thalamic fasciculus (Ansa lenticularis, Lenticular fasciculus) · Subthalamic fasciculusRhinencephalon Other basal forebrain Diagonal band of Broca · Stria terminalisArchicortex:
Hippocampal formation/
Hippocampus anatomySensory system: Olfactory system / Olfaction / Rhinencephalon (TA 15.1, GA 10.992) Olfactory epithelium Olfactory nerve: 1° neuron Olfactory nerve: 2° neuron Mitral cells → Olfactory tract → Olfactory trigoneLateral olfactory stria/
Primary olfactory cortexPiriform cortex · EC-hippocampus system (Entorhinal cortex, Hippocampal formation) · Prepyriform area · Periamygdaloid cortex
Stria medullaris → Habenular nuclei
Amygdala → Stria terminalis → Hypothalamus
Medial forebrain bundle → HypothalamusMedial olfactory stria Categories:- Neuroanatomy
- Olfactory system
- Neuroscience stubs
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