Body Fluids and CirculationMedium
Question
Which of the following are secondary lymphoid organs?
a. Bone marrow
b. Tonsils
c. Spleen
d. Thymus
Choose the correct answer from the options given below:
Options
A.b and d only
B.a and d only
C.a and b only
D.b and c only
Solution
Sol. [Key Concept: Secondary lymphoid organs (spleen, tonsils…)]
Bone marrow and thymus are primary lymphoid organs while tonsils, spleen are secondary lymphoid organs.
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