16 Jun The Lymphatic System and Immunity
Question
Chapter 21: The Lymphatic System and Immunity
Answers to Case Questions
1. Marlene has had lymph nodes removed from her armpit. Why would removal of lymph nodes cause swelling in her hand and arm?
2. Because Marlene was tired following the radiation therapy, she was not moving around a lot. How might this be related to the lymph fluid build up in her arm?
3. As Marlene’s arm swelled, what was happening in her lymphatic capillaries?
4. How might you explain to Marlene that the loss of lymph nodes, the swelling, and her refusal seek treatment of this cut could lead to further problems? (Hint: What other system is related to the lymphatic system?)
5. Marlene most likely has some lymph nodes left in her axillary region. Which lymph node cells would respond to the infectious agents introduced into her body via the cut?
Were the lymph nodes that were removed from Marlene primary or secondary lymphatic organs? lymph nodes are consider secondarythe axillary region- It includes lymph from vessels that drain the arm, the walls of the thorax, the breast, and the upper walls of the abdomen.
6.
7. Which non-specific defenses were at work in Marlene’s body when she cut her hand?
8. Marlene’s wound is inflamed. Which processes involved in inflammation would worsen the swelling already present in her arm?
9. Why would the radiation therapy have caused inflammation?
10. What was in the pus that Francis and Marlene washed out of the wound on her hand?
11. What are the foreign substances to which the doctor is referring?
12.Which lymphatic organs in Marlene’s body would normally trap the antigens and allow a specific immune response to be mounted? Her body innate or non-specific responsive which are her WBC that will recognized any substances that are foreing to her body.
13. Why might the lymph nodes in Marlene’s throat be enlarged?
14. What role would natural killer cells have played in the fight against Marlene’s initial infection?
15. How would massage help reduce fluid build up in Marlene’s arm?
16. How would improving the flow of lymph reducee Marlene’s future chances of getting a similar infection and lymphangitis again? .
17.Which immunoglobulins would have appeared first when Marlene was initially fighting off the infection?
18. Why would reduced lymph return have increased Marlene’s risk of localized infection?
19. How would removal of her lymph nodes have reduced Marlens’s ability to fight infection? .
20. If Marlene suffered a cut on the side of her body opposite the surgery, would her body’s response have been different? How?
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