The olfactory bulb, which is located in the front of the brain, is responsible for processing smells and sending information to other areas of the bodys central command for further processing. Odors take a direct route to the limbic system, including the amygdala and the hippocampus, which are regions related to emotion and memory. The olfactory signals quickly get to the limbic system, and this is why smell and memory seem to be so closely linked. The piriform cortex, which is a collection of neurons located just behind the olfactory bulb, works to identify the smell. Information also goes to the thalamus, which transmits some smell information to the orbitofrontal cortex, where it can be integrated with taste information. Therefore, several parts of the brain control smell, including the olfactory bulb, amygdala, hippocampus, hypothalamus, thalamus, and cortex.