piriform cortex
Acronym:
PIR
The term piriform cortex (PIR) refers to a histologically defined struture on the mesioventral aspect of the limbic lobe in the human ( Yilmazir-Kanke-2012 ), macaque ( Paxinos-2009a ), rat ( Swanson-2004 ) and mouse ( AMBA-2024 ). In the human and mouse it is one of three parts of the anterior parahippocampal gyrus (PHGa). The others are the periamygdalar cortex (PAC) and the entorhinal cortex (ENT).
In the human the PIR has two parts observable by dissection: piriform cortex of the frontal lobe (PIRflb) and piriform cortex of the limbic lobe (PIRllb) ( Mai-1997 ). In other species its boundaries are defined by multiple criteria.
Primary excitatory inputs to the PIR are from the mitral cell ensemble of the main olfactory bulb (MCEm) and the tufted cell ensemble of the main olfactory bulb (TCE). Functionally, the PIR is the largest area of cerebral cortex (CTX) in the olfactory system (OSY). ( NeuroNames ).
Also known as: lateral olfactory gyrus, piriform area, prepiriform cortex, prepyriform area, prepyriform cortex, pyriform area, Cortex piriformis, Regio praepiriformisNeuroNames ID : 165
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