Bleeding from this organ is the classical cause of Kehr’s sign, a left-shoulder pain caused by blood or irritants (10[1])in the peritoneal cavity. The presence of Howell-Jolly bodies indicates lower functioning of this organ, (10[1])which is the main site of specific IgM production. (-5[1])Patients may experience infarction of this organ after contracting sickle-cell disease. Enlargement of this organ can occur after contracting mononucleosis. (10[1])This organ contains red pulp made up of blood vessels, and white pulp made up of lymphoid tissue. For 10 points, name this organ found in the upper-left quadrant (-5[2])of the abdomen, whose functions include immunity and recycling old red blood cells. ■END■ (10[2]0[1])