Blood, Lymph and Immune Systems. Chapter 10. Blood. hem /o and hemat /o plasma - 55% formed elements - 45% serum - plasma without clotting proteins. Blood Cells. RBC - erythrocytes - erythropoiesis WBC - leukocytes - leukopoiesis Platelets - thrombocytes - thrombopoiesis. Erythrocytes.
Antigens stimulate development of antibodies that are unable to distinguish antigens of internal cells.
Body makes antibodies and T cells against itself and attacks own tissues.
Myasthenia gravis, rheumatoid arthritis