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The piriform cortex contains a critical, functionally defined epileptogenic trigger zone, "Area Tempestas". [6] From this site in piriform cortex chemical and electrically evoked seizures can be triggered. It is the site of action for the proconvulsant action of chemoconvulsants. [7]
Prepyriform area (or prepiriform cortex) is a portion of the rhinencephalon consisting of paleocortex. Some sources state that it is part of the primary olfactory cortex . [ 1 ]
It involves the anterior olfactory nucleus, [2] the piriform cortex, [2] the olfactory tubercle, [2] part of the amygdala, [2] part of the entorhinal cortex, [2] [3] and the periamygdaloid cortex. [2] [4] Some sources state that it also includes the prepyriform area. [3] [4] The primary olfactory cortex receives fibres from the olfactory tract. [5]
The pyriform sinus (also piriform recess, piriform sinus, piriform fossa, or smuggler's fossa) is a small recess on either side of the laryngeal inlet. It is bounded medially by the aryepiglottic fold , and laterally by the thyroid cartilage and thyrohyoid membrane . [ 1 ]
Piriform cortex, a region in the brain; Piriformis muscle, a gluteal muscle Piriformis syndrome, a neuromuscular disorder in which the piriformis muscle compresses the sciatic nerve; Piriform sinus, piriform recess or piriform fossa, synonyms referring to one of the four sites of the hypopharynx
The paralimbic cortex is an area of three-layered cortex that includes the following regions: the piriform cortex, entorhinal cortex, the parahippocampal cortex on the medial surface of the temporal lobe, and the cingulate cortex just above the corpus callosum.
Paleocortex is present in the parahippocampal gyrus, [1] olfactory bulb, accessory olfactory bulb, olfactory tubercle, piriform cortex, periamygdalar area, [4] anterior olfactory nucleus, anterior perforated substance, and prepyriform area.
The piriformis muscle (from Latin piriformis 'pear-shaped') is a flat, pyramidally-shaped muscle in the gluteal region of the lower limbs.It is one of the six muscles in the lateral rotator group.