PATHOLOGY

Detailed explanation-1: -The skin and mucous membranes provide mechanical protection and only if their continuity is interrupted, bacteria and viruses can pass. Mucous, tears, and saliva contain an enzyme that is called lysozyme, which dissolves the wall of bacteria.

Detailed explanation-2: -Nonspecific defenses include anatomic barriers, inhibitors, phagocytosis, fever, inflammation, and IFN.

Detailed explanation-3: -The body’s most important nonspecific defense is the skin, which acts as a physical barrier to keep pathogens out. Even openings in the skin (such as the mouth and eyes) are protected by saliva, mucus, and tears, which contain an enzyme that breaks down bacterial cell walls.

Detailed explanation-4: -Non-Specific Defense. Non-specific defense (innate immunity) consists of mechanisms that either keep pathogens out or destroy them regardless of their type. Non-specific defense includes mechanical barriers, chemical substances, cells and inflammation. Mechanical barriers include the skin and mucous membranes.

Detailed explanation-5: -So, the correct answer is ‘Killer T-cells’. Was this answer helpful?