Expression
In vertebrates, the olfactory receptors are located in the cilia of the olfactory sensory neurons. In insects, olfactory receptors are located on the antennae and other chemosensory organs. Sperm cells also express odor receptors, which are thought to be involved in chemotaxis to find the egg cell.
Read more about this topic: Olfactory Receptor
Famous quotes containing the word expression:
“Fashion is the most intense expression of the phenomenon of neomania, which has grown ever since the birth of capitalism. Neomania assumes that purchasing the new is the same as acquiring value.... If the purchase of a new garment coincides with the wearing out of an old one, then obviously there is no fashion. If a garment is worn beyond the moment of its natural replacement, there is pauperization. Fashion flourishes on surplus, when someone buys more than he or she needs.”
—Stephen Bayley (b. 1951)
“A man finds room in the few square inches of the face for the traits of all his ancestors; for the expression of all his history, and his wants.”
—Ralph Waldo Emerson (1803–1882)
“A wicked mortal is not the idea of God. He is little else than the expression of error. To suppose that sin, lust, hatred, envy, hypocrisy, revenge, have life abiding in them, is a terrible mistake. Life and Life’s idea, Truth and Truth’s idea, never make men sick, sinful, or mortal.”
—Mary Baker Eddy (1821–1910)