Mucus is continuously swept from distal to proximal airways. In the most distal bronchioles, epithelial cells are cuboidal and do not produce mucin (bottom box), and bronchiolar patency is stabilized ...

From the slime coating slugs to the saliva in our mouths, many slippery bodily fluids contain mucus. So how did this marvel of biology evolve? In mammals, the answer is many times, and often in a ...

Genes that produce proteins responsible for the sticky qualities of mucus – known as mucins – have evolved from unrelated genes again and again in mammals, according to a study published in Science ...

Your earliest memories of mucus probably revolved around the contents of your nostrils. As a toddler, you were told not to “pick your nose” and you learned to find the slimy mucus gross. But for many ...