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Encyclopedia > Olfactory trigone
Brain: Olfactory trigone
Scheme of rhinencephalon.
Latin trigonum olfactorium
Gray's subject #189 827
NeuroNames hier-15

The olfactory trigone is a small triangular area in front of the anterior perforated substance. Image File history File links Gray732. ... In animal anatomy, the rhinencephalon is a part of the brain involved with olfaction. ... Latin is an ancient Indo-European language originally spoken in Latium, the region immediately surrounding Rome. ... NeuroNames is a system of nomenclature for the brain and related structures. ...


Its apex, directed forward, occupies the posterior part of the olfactory sulcus, and is brought into view by throwing back the olfactory tract. The olfactory tract is a narrow white band, triangular on coronal section, the apex being directed upward. ...


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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant. eMedicine is an online clinical medical knowledge base that was founded in 1996. ... The University of Michigan, Ann Arbor (UM or U of M) is a coeducational public research university in the U.S. state of Michigan. ... The public domain comprises the body of all creative works and other knowledge—writing, artwork, music, science, inventions, and others—in which no person or organization has any proprietary interest. ... An illustration from the 1918 edition Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy after Henry Gray, is an anatomy textbook widely regarded as a classic work on human anatomy. ...


  Results from FactBites:
 
Gray, Henry. 1918. Anatomy of the Human Body. Page 867 (640 words)
Most of the fibers of the lateral olfactory stria pass to the hippocampal region of the cortex, especially to the gyrus hippocampi, which may be regarded as the main ending place of the secondary olfactory path derived from axons of the mitral cells.
The intermediate olfactory striæ are as a rule scarcely visible, the fibers terminate in the anterior perforated substance, a few are said to continue to the uncus.
The most direct path, the tractus olfactomesencephalicus (basal olfactory bundle of Wallenburg), is supposed to arise from cells in the gray substance of the olfactory tract, the olfactory trigone, the anterior perforated substance and the adjoining part of the septum pellucidum.
spinal.html (685 words)
Cranial nerves I and II (olfactory and optic) are special cases; the afferent fibers of their primary sensory neurons enter the brain stem and terminate on the secondary sensory neurons.
Olfactory neurons are bipolar neurons that serve as the olfactory receptor.
Lateral olfactory area consists of the paleocortex of uncus, cortex of the entorhinal area (the anterior part of the parahippocampal gyrus) and the cortex in the region of the limen insulae.
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