Final answer:
The olfactory mucosa is located in the olfactory epithelium of the superior nasal cavity. Odor molecules bind to receptors on the dendrites of olfactory sensory neurons in this region.
Step-by-step explanation:
The olfactory mucosa is located in a small region within the superior nasal cavity, known as the olfactory epithelium. This region contains bipolar sensory neurons, each of which has dendrites that extend into the mucus lining the cavity. As airborne odor molecules are inhaled through the nose, they pass over the olfactory epithelium and bind to receptor proteins on the dendrites of olfactory sensory neurons.