<prompt> All of the following are the components of the white pulp of spleen, exceptPeriaeriolar lymphoid sheathB cellsAntigen presenting cellsVascular sinus  <response>: The spleen contains two main types of tissue - white pulp and red pulp. White pulp is lymphatic tissue material which is pa of the immune system mainly made up of white blood cells. Red pulp is made up of blood-filled cavities venous sinuses and splenic cords. 