Black spot

When I read "clinically oriented anatomy by Moore" two days ago, I found an interesting sentence in Thorax section:

"The lungs are light pink in healthy children and people who are non-smokers and LIVE IN A CLEAN ENVIRONMENT (e.g. Pacific Islanders)."
(the caps locks isn't actually exist in the book, I just want to emphasize those words)

So,what is so interesting about that?

Nothing, really. It's just fulfilled my curiosity in Anatomy Lab a few weeks ago. I saw lung model which taken from cadaver, and the color of its surface was grayish-brown with a lot of black-spot. It wasn't beautiful at all.

I asked my friend spontaneously after I saw it,
"Is our lung normally looks like that? With all the black spot?"
She just shrugged, "I don't know. Maybe the cadaver was a smoker when he lived."

Now I know, that healthy lung is normally LIGHT PINK. The lungs become dark and mottled because of the accretion of carbon and dust particles in the air and ..... (drum rolled for smokers) .... irritants in tobacco that are inhaled.

I'm not smoker, of course.
Sadly,I'm not live in Pacific island.
(I guessed Mr.Moore thought that the only clean space in the modern world is some kind of remoted,far-from-city place).
I live in urban areas, which have (heavy) polluted air from cars, household gas, and from damn f*cking smokers.

In conclusion, Even though I'm not stupid enough to spend money for toxics and inhale them almost everyday,
my lung won't be so difference in appearance from the one that I saw in Anatomy lab...

Dark-grayish,
mottled.

NOT

light-pink,
free from black spot.


*sigh*