Question

which feature of the lymphatic system acts as a blood reservoir?
a thymus
b spleen
c lymph nodes
d diffuse lymphatic tissue

Explanation:

The spleen can store blood and release it into the circulation when needed, such as during intense physical activity or blood - loss situations. The thymus is mainly involved in T - cell maturation, lymph nodes filter lymph, and diffuse lymphatic tissue is part of the immune response but not a blood reservoir.

Answer:

B. Spleen