The lining of the colon is different from the small intestine in that there exists a large number of mucous cells that do not secrete enzymes but rather mucous. The mucous helps protect the wall from the bacterial fermentation inside. About 1.5 L of liquid digestive contents, chyme, pass into the colon.
One important difference between communicable and non-communicable disease is that non-communicable diseases tend to be chronic, which means they last a long time and progress slowly. Communicable diseases are more likely to be acute, which means the disease develops quickly.
A disease is a condition in the body that disrupts normal functions. Why are some diseases contagious while others aren't? This lesson discusses the difference between communicable and noncommunicable diseases. What Are Diseases. Let's say you're sitting at a gate in a major American airport, waiting to board a flight.