Tuesday, December 1, 2015

Barriers that prevent the entry of pathogens Barriers to Entry.. Skin and mucous membrane lining of the respiratory tract and gastrointestinal tract



Works the skin and mucous membrane lining of the respiratory tract and gastrointestinal tract as mechanical barriers prevent the entry of microbes. Also contains sebaceous glands secretions chemicals working to weaken or kill germs on the skin. Also line the respiratory tract cells working to sweep mucous materials and minutes in them towards the pharynx where it is swallowed. Moreover, the acidic medium of the stomach prevents the growth of many types of bacteria. As the various germs that exist naturally in the intestines and the rest of the members Kalmahbl prevent disease-causing bacteria (pathogens) that take place.