These taste receptors are actually quite similar to those found on our tongues, with but a couple of major differences. Lung taste buds are not clustered together and they can only sense bitter flavors. They also do not send any messages to the brain. Some of these bitter flavors are able to dramatically relax lung tissue – this line of research could revolutionize treatment of asthma and other chronic lung diseases in the future!
More on this in Discovery News.