NURSING ANM AND GNM

Detailed explanation-1: -Natural barriers include the skin, mucous membranes, tears, earwax, mucus, and stomach acid. Also, the normal flow of urine washes out microorganisms that enter the urinary tract.

Detailed explanation-2: -External defense systems include your skin, tears, mucus, saliva, stomach acid, cilia (small hairs) and helpful bacteria in your bowel. Your skin provides a physical block to stop bacteria and viruses from finding their way straight into your blood.

Detailed explanation-3: -All humans have a ‘line of defence’ namely the respiratory epithelium with cilia lining the upper respiratory tract from the posterior third of the nasopharynx to the bronchioles [1].