Transcript text: What is the main role of the thymus gland? You can click the VIEW THEORY button to get some guidance with the question.
a) It's a primary lymphatic organ where T cell maturation happens.
b) It's a primary organ of the lymphatic system where B cells mature.
c) It's a secondary lymphatic organ associated with the heart where immunecells mature.
d) It's a secondary part of the heart were immune cells migrate to mature.