Primary olfactory cortex
{{Short description|Area of the brain involved in the sense of smell}}
{{Infobox brain
|Name=Primary olfactory cortex
|System=Olfactory system
|Function=Sense of smell
|Location=Inferior temporal lobe|Components=Anterior olfactory nucleus, piriform cortex, olfactory tubercle, amygdala, entorhinal cortex, periamygdaloid cortex}}
The primary olfactory cortex (POC) is a portion of the cerebral cortex. It is found in the inferior part of the temporal lobe of the brain. It receives input from the olfactory tract. It is involved in the sense of smell (olfaction).
Structure
The primary olfactory cortex is in the inferior part of the temporal lobe of the brain.{{Cite book|last=Feher|first=Joseph|chapter-url=https://www.sciencedirect.com/science/article/pii/B9780123821638000396|title=Quantitative Human Physiology|publisher=Academic Press|year=2012|isbn=978-0-12-382163-8|pages=359–369|language=en|chapter=4.6 - The Chemical Senses|doi=10.1016/B978-0-12-382163-8.00039-6}} It involves the anterior olfactory nucleus,{{Cite book|last1=Cersosimo|first1=Maria Graciela|chapter-url=https://www.sciencedirect.com/science/article/pii/B9780128199732000162|title=Handbook of Clinical Neurology|last2=Benarroch|first2=Eduardo E.|last3=Raina|first3=Gabriela B.|publisher=Elsevier|year=2021|isbn=978-0-12-819973-2|volume=182|pages=235–244|language=en|chapter=16 - Lewy bodies in the olfactory system and the hypothalamus|doi=10.1016/B978-0-12-819973-2.00016-2|pmid=34266595 |s2cid=235961695 |issn=0072-9752}} the piriform cortex, the olfactory tubercle, part of the amygdala, part of the entorhinal cortex,{{Cite web|url=http://emedicine.medscape.com/article/835585-overview |title=Anatomy of Olfactory System: eMedicine Clinical Procedures |access-date=2009-11-20}} and the periamygdaloid cortex.{{Cite book |author=Fix, James D. |title=Neuroanatomy |publisher=Lippincott Williams & Wilkins |location=Hagerstwon, MD |year=2002 |pages=[https://archive.org/details/neuroanatomy0003fixj/page/326 326] |isbn=0-7817-2829-0 |url=https://archive.org/details/neuroanatomy0003fixj/page/326 }} Some sources state that it also includes the prepyriform area.
The primary olfactory cortex receives fibres from the olfactory tract.{{Cite book|last1=Ennis|first1=Matthew|chapter-url=https://www.sciencedirect.com/science/article/pii/B9780123742452000279|title=The Rat Nervous System|last2=Puche|first2=Adam C.|last3=Holy|first3=Tim|last4=Shipley|first4=Michael T.|publisher=Academic Press|year=2015|isbn=978-0-12-374245-2|edition=4th|pages=761–803|language=en|chapter=27 - The Olfactory System|doi=10.1016/B978-0-12-374245-2.00027-9}} It receives input from mitral cells and tufted cells.{{Cite book|last=Doty|first=R. L.|chapter-url=https://www.sciencedirect.com/science/article/pii/B9780128093245065597|title=Reference Module in Neuroscience and Biobehavioral Psychology|publisher=Elsevier|year=2017|isbn=978-0-12-809324-5|language=en|chapter=Sense of Smell|doi=10.1016/B978-0-12-809324-5.06559-7}} These cells do not pass through the thalamus. The primary olfactory cortex then sends fibres to the hippocampus, thalamus, and the hypothalamus.
Function
The primary olfactory cortex is involved in the sense of smell (olfaction).{{Cite journal|vauthors=Zelano C, Montag J, Khan R, Sobel N |title=A specialized odor memory buffer in primary olfactory cortex |journal=PLOS ONE |volume=4 |issue=3 |pages=e4965 |year=2009 |pmid=19305509 |pmc=2654926 |doi=10.1371/journal.pone.0004965 |bibcode=2009PLoSO...4.4965Z |doi-access=free }}{{Cite journal|vauthors=Johnson DM, Illig KR, Behan M, Haberly LB |title=New features of connectivity in piriform cortex visualized by intracellular injection of pyramidal cells suggest that "primary" olfactory cortex functions like "association" cortex in other sensory systems |journal=J. Neurosci. |volume=20 |issue=18 |pages=6974–82 |date=September 2000 |pmid=10995842 |doi= 10.1523/JNEUROSCI.20-18-06974.2000|pmc=6772836}}
References
{{Reflist}}
External links
- https://web.archive.org/web/20091208125446/http://isc.temple.edu/neuroanatomy/lab/atlas/bgalic/
{{Olfactory system}}
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