What are the nonspecific defense in human?

Question

please help me answer this question... and can you help me explain each defense... thank you!!!

Answer 1

Are you talking about innate immune defense?

Well there are a few:

1) Skin; your skin is  a barrier and is nonspecific in what it keeps out of your body, water, dirt, viruses, bacteria....

2) Stomach acid; so strong it kills bacteria and other pathogens that have been swallowed or inhaled

3) Lysozymes; enzymes that destroy bacterial walls, and are present in your saliva, tears and blood.

4) Proteins; there couple dozen proteins found in the blood that nonspecificcaly bind to foreign objects, marking them for destruction.

5) Macrophages and neutrophils; these are cells which nonspecifically "swallow" microorganisms to destroy them.