It turns out that the nose is not the only organ capable of sensing and distinguishing odors. But rather than perceiving them as the sense of smell, our lungs react to the presence of noxious chemicals by triggering an automatic response: a cough.
If you said "blood vessels" or "bronchi" you'd be wrong, but those would both be very good guesses. There's a reason this false-colour image of the Mississippi Delta — photographed by Japan's Advanced Land Observing Satellite — bears such a striking resemblance to ramifying vasculature; as Unpopular Science explains,…
So this is weird. Even by Los Angeles standards, this is really weird. A pair of lungs has been discovered on a sidewalk on the city's southside, and officials still aren't sure where (or who/what) they came from. According to the L.A. Times:
It sounds like the plot of a Troma flick, but yes, your lungs contain taste receptors. When these receptors encounter bitter compounds, they open up your airways — this discovery could radically improve the treatment of lung conditions like asthma.