Multiple Choice
Which primary lymphoid organ is the site of B cell maturation?
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20. The Lymphatic System
Primary Lymphoid Organs
Multiple Choice
In the context of primary lymphoid organs, the thymus gland secretes which hormone involved in T-lymphocyte maturation?
A
Thymosin
B
Cortisol
C
Melatonin
D
Erythropoietin (EPO)
Verified step by step guidance1
Understand the role of primary lymphoid organs: These organs are responsible for the production and maturation of lymphocytes, which are critical cells in the immune system.
Identify the thymus gland as a primary lymphoid organ where T-lymphocytes mature. The thymus provides an environment for immature T-cells to develop and become functional.
Recognize that the thymus gland secretes a specific hormone that promotes the maturation and differentiation of T-lymphocytes. This hormone is essential for the proper development of the immune response.
Recall the names and functions of the hormones listed: Cortisol is a stress hormone, Melatonin regulates sleep cycles, and Erythropoietin (EPO) stimulates red blood cell production, none of which are involved in T-cell maturation.
Conclude that the hormone secreted by the thymus gland involved in T-lymphocyte maturation is Thymosin.
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