Final answer:
The spleen contains two types of pulp: red pulp and white pulp. The red pulp primarily functions as a filtration system of the blood, while the white pulp is where adaptive T and B cell responses are mounted.
Step-by-step explanation:
The spleen contains two types of pulp: red pulp and white pulp. The red pulp consists of cavities that store blood, while the white pulp resembles the lymphoid follicles of the lymph nodes. The red pulp primarily functions as a filtration system of the blood, using cells of the relatively nonspecific immune response, while the white pulp is where adaptive T and B cell responses are mounted.