The locus and cytoarchitecture of the projection areas of the olfactory bulb in Macaca mulatta

A study was made of the normal and experimental anatomy of the olfactory system of the young adult male rhesus monkey. The cytoarchitecture of the central olfactory areas was studies with cell and fiber stains, while the extent and pattern of the projections of the olfactory bulb were determined by the Fink‐Heimer and autoradiographic methods. The brain of one animal that had sustained damage to the olfactory bulb two days prior to sacrifice, and of one that had a transection of the olfactory tract ten days prior to sacrifice, were processed with the Fink‐Heimer technique. The first of these and four others received injections of 3H‐proline or 3H‐leucine into the olfactory bulb, and following a survival period of 18 hours, or 2, 4, 12, or 20 days, their brains were proceessed with the autoradiographic technique. The results were the same for both experimenal methods and for all survivalperiods.

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