Nerve fibers from the olfactory bulb project directly to nerve fibers from the olfactory bulb project directly to the thalamus the hypothalamus the basal nuclei (basal ganglia) the olfactory cortex (uncus)

The olfactory cortex (nucus) of the temporal lobe is where the nerve fibers of the olfactory bulb projects directly. This cortex is where you get the smell sensation before determining what the smell actually is. The olfactory cortex is located on the medial aspect of the temporal lobe, particularly in the uncus or the piriform lobe. It is also called the Rhinoencephalon or the nose brain.

voluntary muscles are controlled by the cerebellum.