Q. No.The cannabinoids receptors are principally located in the central nervous system. The other location where they are present is:
1.
Heart
2.
Spleen
3.
Kidney
4.
Thyroid
| 1. | Heart | 2. | Spleen |
| 3. | Kidney |
4. | Thyroid |
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 |
All of the following are true regarding inflammation except:
| 1. | The same sequence of events occurs in response to any injury, whether it be a burn, an infection, or trauma. |
| 2. | The signs of inflammation are pain, redness, swelling, heat, and possibly loss of function. |
| 3. | Cytokines, histamine, complement, and other chemical mediators are released. |
| 4. | Monocytes are the first cells to arrive from the bloodstream at the site of inflammation. |
IgM:
| 1. | has five antigen-binding sites. |
| 2. | has the ability to cross the placenta. |
| 3. | attaches to mast cells and basophils. |
| 4. | has five constant regions. |
Many physicians prefer mother's milk over cow's milk for infants. This is because mother's milk has the following property not found in cow's milk.
| 1. | Antibodies against human disease |
| 2. | Proteins for growing human muscle |
| 3. | More essential amino acids |
| 4. | MHCs for maturing the infant's immune system |
Opsonization :
| 1. | is the killing of target cells by cytotoxic T cells. |
| 2. | is the secretory component of IgA. |
| 3. | helps increase phagocytosis. |
| 4. | is the interaction that allows IgG to cross the placenta. |
The epitope is the part of the :
| 1. | antibody that binds to the antigen. |
| 2. | antibody that binds to the T helper cell. |
| 3. | antigen that is bound by the antibody. |
| 4. | hypervariable region of the antibody. |
What type of immunity is induced by the hepatitis B vaccine?
1. naturally acquired active immunity.
2. naturally acquired passive immunity.
3. artificially acquired active immunity.
4. artificially acquired passive immunity.
Besides helper T cells, what are two other types of cells that HIV infects?
| 1. | macrophages and brain cells |
| 2. | B cells and liver cells |
| 3. | plasma cells and neutrophils |
| 4. | cytotoxic T cells and brain cells |
When searching for a donor for an organ transplant, doctors try to match the __________ of the donor and recipient as closely as possible.
| 1. | antibodies | 2. | blood type |
| 3. | MHC proteins |
4. | Leukocytes |
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