Olfactory Bulb
Historical document, translated for reference. It reflects medical knowledge of the 1920s–30s and is not medical advice.
Summary
This 1930s encyclopedia article describes the olfactory bulb as the termination point of the first olfactory neuron and the origin of the second. It details its six-layered cortical structure, characteristic mitral cells, and olfactory glomeruli.
Encyclopedia entry (1928–1936)
BULBUS OLFACTORIUS (olfactory bulb), the site of termination of the first olfactory neuron (olfactory nerve) and the origin of the second (olfactory tract), lies on the cribriform plate of the ethmoid bone and has a six-layered structure of the cerebral cortex; its main cells, mitral cells, are located in the 4th layer; its characteristic feature is the olfactory glomeruli (glomeruli olfactorii) located in the 2nd layer; in these glomeruli, the transmission of excitation from the peripheral neuron to the second-order neuron takes place. (For details, see Olfaction.)
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“Olfactory Bulb.” Soviet Medical Encyclopedia. English translation of Bolshaya Meditsinskaya Entsiklopediya, 1st ed. (Moscow, 1928–1936), ed. N. A. Semashko. https://sovietmedicalencyclopedia.pages.dev/article/olfactory-bulb/