I Believe it is a chemical barrier because is contains an enzyme called "lysozyme" which prevents pathogens entering the human body.
so other germs can't get you sick, think of mucus as a wall against germs
because mucus lubricates (moistens ) food so that it slides down the esophagus more easily
Yes, but they're not identical. The mucus lining the respiratory system is used as a dirt (well, dust) trap. The mucus lining the digestive system acts as a barrier to the digestive juices (so that you don't try to digest yourself [see 'ulcers' as example of failure]).
inside of a cell, clear thick like fluid, allows chemical change, it flows constantly inside membrane barrier of a cell
mucus- mucus in the lungs makes breathing difficult
it is a chemical barrier because it produces tears that are chemicals. also- for your information, skin is a physical barrier along with the nose and mucus and cilia. sebum and stomach acid are chemical. :D
Yes , they do so by the barrier-blood barrier
chemical barrier
chemical barrier
Barrier contraceptive is a condom, and chemical contraceptive is spermicide.
haha
prostaglandins. prostaglandins protect the mucosal barrier by stimulating the secretion of mucus and bicarbonate and b inhibiting secretions of acid. medicines that block prostaglandins therefore blocks mucus production.
i think it is stomach acid
The Activation Energy.
In the stomach, the stomach acid is there to digest protein. Your stomach, as is mucus, is made of protein. So, your stomach produces mucus to sacrifice instead of the stomach muscle/protein. The mucus is continually being digested by the acid, but it is also continuously being produced at the same rate as its digestion. The mucus also protects the inner lining of the digestive system against abrasive objects you may have eaten. Lubrication? Need I say more than that mucus is slippery so the food slides more easily.
Mucus is carbohydrate based. It is not affected by the pepsin. Once this barrier is broken, pepsin attack the stomach wall to form the ulcer. You give acid lowering agents to lessen the efficiency of the pepsin.
One of these natural barriers is the skin, which protects the internal organs from damage caused by diseases, as well as harmful chemicals and radiation from the sun. The nasal hairs in the nose and sticky mucus along the windpipe also helps prevent dieseases by filtering the air. If some irritants get into the nose, the person will cough to shift the mucus down into the throat to be swallowed. The mucus will then be transfered to the stomach so that the microbes can be killed by its acid.