These nerve cells are found in a small patch of tissue high inside the nose. Pheromones are naturally occurring chemicals that send out signals to the opposite sex (or the same sex) that trigger power sexual response.
The olfactory sense is interpreted by the part of the brain that is connected to our emotions. The word pheromones is taken from the Greek words pherein, meaning “to transfer,” and hormon, meaning “to excite”.
This complicated process of begins when tiny molecules released by the substances around us stimulate special cells in the nose, mouth, or throat.
These special sensory cells transmit messages through nerves to the brain where specific smells are identified.
"Transformers 3" features Sam Witwicky (La Beouf) taking his first tenuous steps into adulthood while remaining a reluctant human ally of Optimus Prime.