The major histocompatibility complex is a :
| 1. | Series of complement-enhanced reactions to antigens |
| 2. | group of antigens, coded by a family of genes, on the surface of body cells |
| 3. | form of autoimmunity |
| 4. | the major cause of cancer |
The cell-mediated immunity inside the human body is carried out by
1. T-lymphocytes
2. B-lymphocytes
3. thrombocytes
4. erythrocytes
The most active phagocytic white blood cells are
1. neutrophils and eosinophils
2. lymphocytes and macrophages
3. eosinophils and lymphocytes
4. neutrophils and monocytes
A foreign body giant cell is formed by
1. osteoclasts
2. mast cells
3. plasma cells
4. histiocytes
Hybridoma is a synonym of:
| 1. | polyclonal antibody |
| 2. | monoclonal antibody |
| 3. | polymerase chain reaction |
| 4. | fluorescent in situ hybridization |
Memory cells are stored in
1. spleen
2. lymph nodes
3. both 1. and 2.
4. a specialised area of brain tissue
Which one of the following immune system components does not correctly match with its respective role?
| 1. | Interferons - secreted by virus-infected cells and protect non-infected cells from further viral infection |
| 2. | B-lymphocytes-produces antibodies in response to pathogens into blood to fight with them |
| 3. | Macrophages-mucus secreting cells that trap microbes entering in the body |
| 4. | IgA-present in colostrum in early days of lactation and protect infant from diseases |
The granulocytes that are actively phagocytic and the most numerous of the leukocytes circulating in the blood are the:
| 1. | neutrophils | 2. | basophils |
| 3. | eosinophils | 4. | monocytes |
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