Sciencegajab

IMMUNITY:   • The ability of the host to fight the disease-causing organisms,   • conferred by the immune system.   .Immunity is of two types:   • Innate immunity   • Acquired immunity.  Innate immunity  • Non-specific type of defence,   • Present at the time of birth.   .Innate immunity is accomplished by providing different types of barriers to the entry of the foreign agents into our body.   • Innate immunity consists of four types of barriers.  These are —         • Physical barriers:                  Ø Skin                   Ø Mucus coating of the epithelium lining          • Physiological barriers:                  Ø Acid in the stomach,                  Ø saliv...

IMMUNITY:   • The ability of the host to fight the disease-causing organisms,   • conferred by the immune system.   .Immunity is of two types:   • Innate immunity   • Acquired immunity.  Innate immunity  • Non-specific type of defence,   • Present at the time of birth.   .Innate immunity is accomplished by providing different types of barriers to the entry of the foreign agents into our body.   • Innate immunity consists of four types of barriers.  These are —         • Physical barriers:                  Ø Skin                   Ø Mucus coating of the epithelium lining          • Physiological barriers:                  Ø Acid in the stomach,                  Ø sali...