what are the smallest formed elements found in blood quizlet?
['Platelets. What are the smallest formed elements found in blood.', 'B lymphocyte. Which cell type is responsible for humoral immunity.', 'Immature rbc. A reticulocyte is an.', 'Lymphocyte. Which type of blood cell is responsible for the immune response.', 'Macrophages. ... ', 'Basophils. ... ', 'Plasma. ... ', 'Serum.']