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प्रश्न
Which of the following glands is large-sized at birth but reduces in size with ageing?
पर्याय
Pineal
Pituitary
Thymus
Thyroid
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उत्तर
Thymus
Explanation:
The thymus is a lobed organ that sits beneath the breastbone and closes to the heart. The thymus is relatively large at birth, but as people age, it gets smaller and smaller until it is very small by the time they reach adolescence.
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संबंधित प्रश्न
Name the primary lymphoid organs.
The following is well-known abbreviation, which have been used in this chapter. Expand to its full form:
MALT
Which of the following is correct?
MALT constitutes about ______ per cent of the lymphoid tissue in human body.
The letter Tin lymphocyte refers to:
Lymphoid tissue is found in ______
Bone marrow test is beneficial in case
Which of the following is not a lymphoid tissue?
Where are B-cells and T-cells formed? How do they differ from each other?
What would happen to the immune system if the thymus gland is removed from the body of a person?
Lymph nodes are secondary lymphoid organs. Explain the role of lymph nodes in our immune response.
Epithelial lining of our intestine is considered as secondary lymphoid organ. Justify the statement.
Explain the role of Primary and Secondary Lymphoid organs with the help of suitable examples.
Statement I: Bone marrow is the main lymphoid organ where all blood cells including lymphocytes are produced.
Statement II: Both bone marrow and thymus provide micro environments for the development and maturation of T-lymphocytes.
In the light of the above statements, choose the most appropriate answer from the options given below:
