Defence Mechanisms in the Body

Defence mechanisms in the body protect against pathogens through innate immunity (physical barriers, phagocytes) and adaptive immunity (antibodies, memory cells), ensuring the body can fight infections and maintain health.

Defence Mechanisms in the Body
Antigen & Antibody
Types of Immunity
Active Immunization (Vaccination)

✅ 10 Points – Importance of Defence Mechanisms in the Body

  1. Provides protection against harmful microbes.

  2. Innate immunity acts as the first line of defence.

  3. Adaptive immunity offers long-term specific protection.

  4. Involves immune cells like WBCs, macrophages, and lymphocytes.

  5. Antibodies neutralize specific antigens.

  6. Helps in vaccination and immunity development.

  7. Vital in combating infections, viruses, and bacteria.

  8. Maintains overall body health and disease resistance.

  9. Important for organ transplant compatibility.

  10. Essential for UPSC, NEET and medical exam preparations.

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