Olfactory receptors respond to blood-borne odorants.
D000818:Animals; D001790:Blood Physiological Phenomena; D010856:Columbidae / Q000502:physiology*; D004058:Diffusion; D006801:Humans; D009812:Odorants / Q000032:analysis*; D009831:Olfactory Mucosa / Q000098:blood supply / Q000502:physiology*; D051381:Rats; D011919:Rats, Inbred Strains; D012903:Smell / Q000502:physiology*; D013045:Species Specificity; D014426:Turtles / Q000502:physiology