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प्रश्न
Name any two types of cells that act as ‘cellular barriers’ to provide innate immunity in humans.
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उत्तर
Our body has several types of leucocytes (WBC), such as macrophages in tissues and polymorpho-nuclear leucocytes (PMNL-neutrophils) and monocytes in the blood.
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संबंधित प्रश्न
A heavily bleeding and bruised road accident victim was brought to a nursing home. The doctor immediately gave him an injection to protect him against a deadly disease.
- Write what did the doctor inject into the patient’s body.
- How do you think this injection would protect the patient against the disease?
- Name the disease against which this injection was given and the kind of immunity it provides.
Describe the antigen-antibody complex
Suggest a method to ensure an anamnestic response in humans.
Explain the relationship between B-lymphocytes and T-lymphocytes developing an immune response.
How does the human body respond when vaccine is introduced into it?
Write the full forms of: BCG
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Define ‘Health’, as given by WHO.
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The type of immunity generated by the transfer of lgA from mother to child is ____________.
____________ are previously sensitized cells which retain the sensitization memory for a long time in the future.
Which type of T-cells are responsible for producing lymphokines and stimulation of B- cells?
All are forms of vaccines, EXCEPT ______.
Which cells deliver co-stimulatory signals for helper T-cells?
Match column I with column II and choose the correct option.
| Column I | Column II | ||
| i. | Specificity | a. | Lymphocytes produced against each particular foreign molecule |
| ii. | Diversity | b. | Self-cells are not attacked by immune system of the own body |
| iii. | Memory | c. | Immune system works against multiple pathogens |
| iv. | Discrimination between self and non-self | d. | Stronger immune response on second encounter |
Which of the following components does not participate in innate immunity?
Class of cytokines released by cells infected with viruses and certain WBC's to protect from viral infection are ______.
What does the local defence system include?
