The olfactory bulb or bulb olfactorius ( Latin bulbus "onion", olfactorius "smelling") is a swelling at the front base of the brain and part of the rhinencephalon or the olfactory tract . The olfactory nerves ( Nervi olfactorii ) end at the olfactory bulb and run from the olfactory mucous membrane in the nose through the lamina cribrosa of the ethmoid bone into the cranial cavity . The olfactory bulbs on both sides are connected by the anterior commissure ( commisura rostralis ).
After a complicated switchover in the olfactory glomeruli and an initial processing of the olfactory information in the olfactory bulb, the sensory reports in the olfactory tract reach the higher processing centers in the telencephalon .
Specialized cells of the olfactory bulb are mitral cells , brush cells and granule cells .
Smell disorders caused by damage to the olfactory bulb belong to the so-called central dysosmias .
- ↑ University of Göttingen: Lecture Neuroanatomy ( Memento from July 13, 2007 in the Internet Archive ) (PDF; 45 kB).
- ↑ Ludger Klimek, Bertram Moll, Gerd Kobal: Smell and taste in old age . Dtsch Arztebl 2000; 97 (14): A-911 / B-763 / C-712 .