Chapter 9 Learning Activity 9-2

Erythrocytosis

Abnormal increase in erythocytes

Leukocytosis

Abnormal increase in leukocytes

Lymphocytosis

Abnormal increase in lymphocytes

Reticulocytosis

Abnormal increase in reticulocytes

Erythropenia

Decrease in erythrocytes

Leukopenia

Decrease in leukocytes

Lymphocytopenia

Decrease in lymphocytes

Thrombocytopenia Thrombopenia

Decrease in thrombocytes

Splenolysis

Destruction of the spleen

Thymolysis

Destruction of the thymus

Splenectomy

Excision of the spleen

Splenopexy

Fixation of a displaced spleen

Splenocele

Herniation of the spleen

Splenotomy

Incision of a spleen

Hemopoiesis Hematopoiesis

Production of blood

Thrombocytopoiesis

Production of thrombocytes

Leukopoiesis Leukocytopoiesis

Production of white blood cells

Thymectomy

Removal of the thymus

Immunologist

Specialist in the study of immunity

Immunology

Study of immunity