Blood.

The suffix -poiesis means production, formation, or creation. The prefix hemato- refers to blood. Hematopoiesis means the production of blood. The suffix -rrhage means bursting forth, so hemorrhage means bleeding. The suffix -logy means study, so hematology is the study of blood. Stasis means balance or to stop, so hemostasis means stopping blood flow.

Erythrocyte breaks down as erythr/o/cyte. Erythr- means red, and -cyte means cell. An erythrocyte is a red blood cell. White blood cells are leukocytes. Platelets are thrombocytes. Plasma cells are a type of immune cell.

Anemia is derived from an/emia. The prefix an- means without, and -emia means blood. Anemia literally means "without blood" and describes a deficiency of red blood cells or hemoglobin. Anemia does not mean excess blood, blood clot, or blood infection.

Leukocyte is formed from leuko/cyte. Leuko means white, and cyte means cell. Although monocytes and granulocytes are types of white blood cells, the words themselves do not translate to "white cell." Granul/o/cyte refers to cells with granules.

Agranulocytes are white blood cells without granules. The prefix a- or an- means without. Agranulocytes include monocytes and lymphocytes. Granulocytes are white blood cells with granules and include neutrophils, basophils, and eosinophils.

Thrombocytes (platelets) are fragments of large bone marrow cells called megakaryocytes. Their primary role is blood clotting (hemostasis). Body defense is the job of leukocytes (white blood cells). Oxygen transport is performed by erythrocytes (red blood cells). Nutrient transport is handled by plasma.

Plasma is the fluid portion of blood and makes up approximately 55% of blood volume. Lymph is fluid in the lymphatic system. Cerebrospinal fluid surrounds the brain and spinal cord. Peritoneal fluid is found in the peritoneal cavity.

Leukocytes (white blood cells) defend the body against pathogens and dangerous foreign substances. Plasma transports gases and hormones. Platelets play a role in blood clotting. Erythrocytes transport oxygen.

Thrombocytopenia breaks down as thrombo (platelets) + cyto (cell) + penia (lack or deficiency). It literally means a low platelet count. Excess platelets is thrombocytosis. Abnormal platelet function is thrombocytopathy. Fragmented cells in pathology usually refers to red blood cells, not platelets.

Plasma, the fluid portion of blood, transports hormones, nutrients, proteins, and waste products. Erythrocytes transport oxygen. Thrombocytes help form blood clots. Lymph is not part of blood; it functions in body defense and nutrient transport within the lymphatic system.