Multiple Choice
Which of the following is NOT a role of the spleen?
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20. The Lymphatic System
Overview of Lymphoid Organs
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following are considered to be primary lymphoid organs?
A
Tonsils and Peyer's patches
B
Spleen and lymph nodes
C
Thymus and bone marrow
D
Appendix and adenoids
Verified step by step guidance1
Understand the role of primary lymphoid organs: Primary lymphoid organs are where lymphocytes (a type of white blood cell) are formed and mature. These organs provide an environment for stem cells to develop into mature immune cells.
Identify the primary lymphoid organs: The thymus and bone marrow are the primary lymphoid organs. The thymus is where T lymphocytes mature, and the bone marrow is where B lymphocytes mature and where all blood cells are produced.
Differentiate between primary and secondary lymphoid organs: Secondary lymphoid organs, such as the spleen, lymph nodes, tonsils, and Peyer's patches, are sites where immune responses are initiated. They do not produce lymphocytes but provide a location for them to encounter antigens.
Recognize the function of the thymus: The thymus is crucial for the development of T cells, which are essential for adaptive immunity. It is located in the chest, just above the heart.
Recognize the function of bone marrow: Bone marrow is responsible for producing all types of blood cells, including B lymphocytes, which are part of the adaptive immune system. It is found within the cavities of bones.
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