Multiple Choice
Where are Peyer's patches located in the human body?
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21. The Immune System
Introduction to the Immune System
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Which gland is involved in immune responses?
A
Pineal
B
Pituitary
C
Thyroid
D
Thymus
Verified step by step guidance1
Understand the role of each gland listed in the options: The pineal gland regulates circadian rhythms, the pituitary gland controls various endocrine functions, the thyroid gland regulates metabolism, and the thymus gland is involved in immune system development.
Recall that the thymus gland is primarily responsible for the maturation of T-lymphocytes (T-cells), which are critical for adaptive immunity.
Recognize that the thymus is most active during childhood and adolescence, as it plays a key role in developing the immune system during early life.
Eliminate the other options based on their primary functions: The pineal gland is related to melatonin production, the pituitary gland is the 'master gland' for hormone regulation, and the thyroid gland is involved in metabolic processes.
Conclude that the thymus gland is the correct answer because it directly contributes to immune responses by supporting the development of T-cells.
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