Olfactory Nerve (N I). The olfactory nerve is a special sensory cranial nerve that is responsible for the sense of smell. The receptors of these neurons are found in the olfactory epithelium and the axons pass through the cribriform plate of the ethmoid bone.These neurons synapse within the olfactory bulb which lies directly above the cribriform plate. Information concerning olfaction goes directly to the cerebrum in the olfactory tract.t provides sensory information from the orbit and the forehead. 2. Maxillary branch (sensory) This branch passes through the foramen rotundum. It provides sensory information from the upper lip, cheeks and nose and the gums and teeth of the upper jaw.