Olfactory bulb
The olfactory system, or sense of smell, is the sensory system used for smelling, also known as “olfaction”.
Olfactory receptors are specialised sensory neurones that detect odour molecules dissolved in mucus in the lining of the nose. The receptors produce electrical responses (impulses) in response to odours. The impulses travel via synapses to sensory neurones in the olfactory bulb, then along the axons of these cells to the central olfactory system of the brain.
