Olfactory bulb

Olfactory bulb
Human brain seen from below. Vesalius' Fabrica, 1543. Olfactory bulbs and olfactory tracts outlined in red
Sagittal section of human head.
Details
System	Olfactory
Identifiers
Latin	bulbus olfactorius
MeSH	D009830
NeuroNames	279
NeuroLex ID	birnlex_1137
TA98	A14.1.09.429
TA2	5538
FMA	77624
Anatomical terms of neuroanatomy [edit on Wikidata]

The olfactory bulb (Latin: bulbus olfactorius) is a neural structure of the vertebrate forebrain involved in olfaction, the sense of smell. It sends olfactory information to be further processed in the amygdala, the orbitofrontal cortex (OFC) and the hippocampus where it plays a role in emotion, memory and learning. The bulb is divided into two distinct structures: the main olfactory bulb and the accessory olfactory bulb. The main olfactory bulb connects to the amygdala via the piriform cortex of the primary olfactory cortex and directly projects from the main olfactory bulb to specific amygdala areas. The accessory olfactory bulb resides on the dorsal-posterior region of the main olfactory bulb and forms a parallel pathway. Destruction of the olfactory bulb results in ipsilateral anosmia, while irritative lesions of the uncus can result in olfactory and gustatory hallucinations.