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. 2021 Dec 31;12(1):91. doi: 10.3390/ani12010091

Figure 6.

Figure 6

Histological study with Nissl stain of the structure of the main olfactory bulb. (A) The glomerular layer (GlL) comprises the typical spherical glomeruli surrounded by numerous periglomerular cells. Scattered neurons with large somas are also found (arrowhead). (B) The granular layer (GrL) is formed by neat clusters of granule cells interspersed with large neuronal somas (arrowhead). (C) Mitral cells somas are aligned along the mitral layer (ML), whereas the external plexiform layer (EPL) contains tufted cells (arrowheads). (D) The deep area of the MOB contains the rostral horn of the lateral ventricle, the olfactory ventricle (OV), with its ependyma (arrow) and a dense proliferative zone characteristic of the subventricular zone (SVZ) neuroprogenitor cells. NL, nerve layer. Scale bars: (A,B) 50 µm; (C,D) 100 µm.