State the important stages of B cell development from stem cell to plasma cell and the
main event happening at each stage.
What will be an ideal response
1. Hematopoietic stem cell—stimulated to become committed to the B cell line
2. Pro-B cell—heavy chain gene rearrangement
3. Pre-B cell—light chain gene rearrangement
4. Immature B cell—development of membrane surface IgD and IgM
5. Mature B cell—migrates from bone marrow to secondary lymphoid tissue, waiting for antigen encounter
6. Stimulated B cell—division after antigen stimulation to produce plasma cells and memory cells
7. Plasma B cell—secretes antibodies
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The development of stress-related illness hinges most on _____.
A. the ratio of eustress to distress B. the amount of neustress C. how people perceive and cope with stress D. the amount and type of stress E. how much people support others who take stress
The prefix DE- means thick.
Answer the following statement true (T) or false (F)
Which type of abortion involves the dilation of the cervix and insertion of a suction tip to draw out the contents of the uterus by means of a vacuum system?
a. spontaneous abortion b. suction curettage c. medical abortion d. partial birth abortion e. laparoscopic abortion
?Happy, relaxed people are more resistant to illness than those who tend to be unhappy or tense.
Answer the following statement true (T) or false (F)