In mammals, the tissue located in the nasal cavity that contains olfactory receptor neurons (q.v.), which detect and transmit olfactory signals to the brain. In addition to these neurons, the olfactory epithelium also contains supporting cells and stem cells that divide regularly to replace olfactory neurons that die. The corresponding olfactory sensory organs in Drosophila are in the antenna and the maxillary palp, where the fly's olfactory receptor neurons are located.
Subjects: Genetics and Genomics.