A large list of food that starts with A that can be used for many tasks. Click on any word in the list of food starting with A for the definition. NounsStarting.com
Colors of Mucus (Phlegm, Sputum). Phlegm may be clear (white), yellow/green, brown, grey, black, pink, orange, containing red streaks, or frothy. Phlegm is mucus (sputum) coughed up from the chest. It reveals inflammation in the respiratory organs below the vocal cords (voice box, windpipe, bronchi and lungs). From the color and density of phlegm, and accompanying symptoms, its cause may be suspected.
White area on top is the cancer, this is what killed the person. The blackened area is just the deposit of tars that all smokers paint into their lungs with every puff they take. To add a little more perspective to the demonstration, here is another way to see how much tar actually gets into the lungs from smoking.