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:
“Cows sometimes wear an expression resembling wonderment arrested on its way to becoming a question. In the eye of superior intelligence, on the other hand, lies the nil admirari spread out like the monotony of a cloudless sky.”
—Friedrich Nietzsche (1844–1900)
“Removed from its more restrictive sense, masturbation has become an expression for everything that has proved, for lack of human contact, to be void of meaning. We have communication problems, suffer from egocentrism and narcissism, are frustrated by information glut and loss of environment; we stagnate despite the rising GNP.”
—Günther Grass (b. 1927)
“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)