Multiple Choice
When B lymphocytes are dividing rapidly, the __________ of the lymphoid tissue enlarge(s).
20. The Lymphatic System
Secondary Lymphoid Organs: Lymph Nodes
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A sentinel node is the first lymph node __________.
A
that receives lymph drainage from a body area suspected of cancer
B
to produce an antibody in an immune reaction
C
that contains mature lymphocytes
D
to encounter an antigen
Verified step by step guidance1
Understand the concept of a sentinel node: In the context of cancer, a sentinel node is the first lymph node to which cancer cells are most likely to spread from a primary tumor.
Recognize the role of lymph nodes in the immune system: Lymph nodes filter lymph fluid and house lymphocytes that help in fighting infections and diseases.
Identify the function of a sentinel node in cancer diagnosis: It is used to determine the presence or absence of cancer cells, helping in staging cancer and planning treatment.
Clarify the options given: The correct answer involves the sentinel node's role in receiving lymph drainage from a body area suspected of cancer.
Differentiate between the options: The other options relate to general lymph node functions, such as antibody production and antigen encounter, which are not specific to the sentinel node's role in cancer detection.
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