Questions: 7:05PM Thu Jan 9 FINAL EXAM Started: Jan 9 at 5:55pm Quiz Instructions This is a CLOSED note exam. Any deviation from the exam taking page or us Question 55 Which lymphoid organ is essential for T cell maturation? O Bone marrow O Lymph nodes O Thymus O Spleen

7:05PM Thu Jan 9 FINAL EXAM Started: Jan 9 at 5:55pm Quiz Instructions This is a CLOSED note exam. Any deviation from the exam taking page or us Question 55 Which lymphoid organ is essential for T cell maturation? O Bone marrow O Lymph nodes O Thymus O Spleen
Transcript text: 7:05PM Thu Jan 9 FINAL EXAM Started: Jan 9 at 5:55pm Quiz Instructions This is a CLOSED note exam. Any deviation from the exam taking page or us Question 55 Which lymphoid organ is essential for T cell maturation? O Bone marrow O Lymph nodes O Thymus O Spleen
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Solution

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The answer is the third one (C): Thymus.

Explanation for each option:

  • Bone marrow: This is where all blood cells, including lymphocytes, are initially produced. However, it is not the site where T cells mature. T cells migrate from the bone marrow to the thymus for maturation.

  • Lymph nodes: These are small, bean-shaped structures that filter lymph and house lymphocytes, but they are not involved in the maturation of T cells. They are more involved in the activation and proliferation of mature lymphocytes during immune responses.

  • Thymus: This is the correct answer. The thymus is the primary site for T cell maturation. Immature T cells, or thymocytes, migrate from the bone marrow to the thymus, where they undergo a selection process to become mature T cells capable of responding to antigens.

  • Spleen: The spleen is involved in filtering blood and housing immune cells, but it is not responsible for the maturation of T cells. It plays a role in the immune response and the destruction of old red blood cells.

In summary, the thymus is the essential lymphoid organ for T cell maturation.

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