Fig. 2

Schematic diagram of the olfactory system. In the process of inhaling air, volatile molecules reach the inside of the nose. The olfactory epithelium in the nasal cavity interacts with these odor molecules. The axons of the olfactory sensory neurons are projected onto the OB to be septaped with the dendrite of the secondary neuron, which is projected onto the olfactory cortex. The determination of smell is determined by the pattern formed by a combination of different receptors that recognize the specific molecular characteristics of each odor molecule