The left picture shows a saggital cut through a head close to the median plane. It shows the nasal cavity, which is divided by conchae and ducts. Red: The olfactory region, where the olfactory cells are, as well as the first part of the olfactory pathway. Olfactory cells are bipolar and carry cilia, they are the receptors and first neuron of the olfactory pathway, which ends in the olfactory bulb in the frontal lobe of the cerebrum. The olfactory epithelium consists of sensory, supporting, and spare cells. Unlike the sensory cells of the tongue, olfactory cells can sense hundreds of olfactory qualities. The right picture shows the cilia, that are connected with the nerve cell bodies via dendrites. The nerve cells conduct the information to the olfactory bulb via axons.
