What is the function of the taste and olfactory analyzers?

Although a person receives 90% of information about the environment through sight, smell and taste play an important role in our life. Smells and tastes stimulate the digestive glands, warn us of danger (spoiled food, gas leaks), constrict blood vessels and raise blood pressure (ammonia), awaken memories or affect our emotional state (perfume, the smell of flowers). In addition, the final perception of taste is impossible without smell, since the olfactory and gustatory zones of the PCP are nearby.