Question at position 7 This lymphoid organ is known as the "RBC graveyard" because old, worn out RBC are destroyed here.TonsilsThymusAppendixSpleenBone marrowSingle choice
A
Tonsils
B
Thymus
C
Appendix
D
Spleen
E
Bone marrow

Question

Question at position 7 This lymphoid organ is known as the "RBC graveyard" because old, worn out RBC are destroyed here.TonsilsThymusAppendixSpleenBone marrow

BlackTom AI · Accepted Answer

Question restatement: This lymphoid organ is known as the 'RBC graveyard' because old, worn out RBCs are destroyed here.
Options presented: 1) Tonsils 2) Thymus 3) Appendix 4) Spleen 5) Bone marrow
Analysis of each option:
1. Tonsils: The tonsils are lymphoid tissues located at the entrance of the pharynx and are primarily involved in initiating immune responses to inhaled or ingested pathogens. They are not the main site of old red blood cell destruction, so this choice does not match the described function.
2. Thymus: The thymus is important for T-cell maturation, especially in younger individuals, and plays a central role in adaptive immunity. It does not perform RBC turnover or destruction, making it an inappropriate fit for the RBC graveyard description.
3. Appendix: The appendix is a lymphoid organ whose exact function is debated, with some roles proposed in gut-associated lymphoid tissue and immune responses. It is not characteristically known for destroying old red blood cells, so this option does not align with the described function.
4. Spleen: The spleen contains red pulp where old and damaged red blood cells are filtered and destroyed, earning its famous nickname the RBC graveyard. It also participates in immune surveillance via white pulp. This option best matches the described function.
5. Bone marrow: Bone marrow is the site of hematopoiesis, producing new blood cells, including RBCs, but not primarily responsible for destroying worn-out RBCs. Therefore, it does not fit the given description of RBC destruction.
Summary: Among the options, the spleen uniquely corresponds to the function of destroying old RBCs through its red pulp component, while the other organs have different primary roles in immunity or hematopoiesis. The reasoning shows why each incorrect option does not match the specific function described, and why the spleen is the organ associated with removing aged red blood cells.

Question at position 7 This lymphoid organ is known as the "RBC graveyard" because old, worn out RBC are destroyed here.TonsilsThymusAppendixSpleenBone marrowSingle choice

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