Advertisements
Advertisements
Question
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.
Advertisements
Solution
- The doctor injected the antitoxin serum, specifically human tetanus immunoglobulin injection, into the patient’s body.
- This injection contains preformed antibodies against the tetanus toxin. Since these antibodies are already prepared in the serum, they provide immediate protection by neutralizing the toxin produced by the tetanus-causing bacteria, preventing the disease from developing.
- The disease against which this injection was given is tetanus (also known as lockjaw), caused by the bacterium Clostridium tetani. The injection provides artificial passive immunity to the patient because it involves the direct transfer of antibodies, rather than the patient's body producing them after exposure to an antigen.
APPEARS IN
RELATED QUESTIONS
Highlight the role of thymus as a lymphoid organ.
What are the uses of vaccine?
Describe the antigen-antibody complex
How does the human body respond when vaccine is introduced into it?
Write the full forms of AIDS.
Name the antibody which is most effective in allergies.
State the function of interpherons.
State the role of the thymus as a lymphoid organ. Name the cells that are released from it and mention their function.
Mention one application of the following:
Passive immunization
Both B-cells and T-cells are derived from __________.
Define health.
Immunity acquired after an infection is ______immunity.
Which cells are play a major role in non-specific defence against viral infections and tumors?
____________ is a foreign substance capable of stimulating an immune response.
In acquired immunity there is a specific mechanism for each foreign molecule. This property is known as _______.
Coating of bacteria to facilitate subsequent phagocytosis by macrophages is known as ____________.
On coming in contact with an antigen, a sensitized T-lymphocyte produces ____________.
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 |
