smell

• -          the stimuli for sensation of smell are molecules of various substance contained in the nose

  -          such molecules enter nasal passages, where they dissolve in moist nasal tissues and come in contact with receptor cells contained in
• nose is sensitive to various basic odors: flowery, misty, musky, ethereal, pungent, putrid, and burnt
• sometimes we can develop an anosmia or ‘smell blindness’ for a particular odor which may suggest that one kind of receptor has been damaged or degenerated