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:
“Call them rules or call them limits, good ones, I believe, have this in common: They serve reasonable purposes; they are practical and within a child’s capability; they are consistent; and they are an expression of loving concern.”
—Fred Rogers (20th century)
“I do not know whether there be, as a rule, more vocal expression of the sentiment of love between a man and a woman, than there is between two thrushes. They whistle and call to each other, guided by instinct rather than by reason.”
—Anthony Trollope (1815–1882)
“We think of religion as the symbolic expression of our highest moral ideals; we think of magic as a crude aggregate of superstitions. Religious belief seems to become mere superstitious credulity if we admit any relationship with magic. On the other hand our anthropological and ethnographical material makes it extremely difficult to separate the two fields.”
—Ernst Cassirer (1874–1945)