The principle of immunization or vaccination is based on which property of the immune system?
1. Specificity
2. Memory
3. Ability to recognize self from non-self
4. Cooperation between innate and adaptive immunity
A drug that would not be helpful in the treatment of allergies is:
1. | Antibiotics | 2. | Antihistaminics |
3. | Steroids | 4. | Adrenaline |
Small masses of lymphatic tissue found throughout the ileum region of the small intestine are called:
1. | Paneth cells | 2. | Meissener’s Plexus |
3. | Peyer’s patches | 4. | Entero-chromaffin cells |
What constitutes about 50% of the lymphoid tissue in the human body?
1. | Malt | 2. | Spleen |
3. | Lymph nodes | 4. | Liver |