Immune System Flashcards
Formed Elements
Red blood cells, white blood cells, and platelets
Hematocrit
The portion of red blood cells in the whole blood
Whole Blood
Formed elements and plasma
What is another name for red blood cells?
Erythrocytes
Hematopoiesis
Formation of blood cells
Myeloid Stem Cells
Produce formed elements
Lymphoid Stem Cells
Produce lymphocytes
What are red blood cells that contain oxygen?
Oxyhemoglobin
What are red blood cells that do not contain oxygen?
Deoxyhemoglobin
Erythropoiesis
Formation of red blood cells
What hormone is produced in the kidneys and makes red blood cells in the bone marrow?
Erythropoietin
What is the lifespan of red blood cells?
120 days
What are the three types of plasma?
Albumin, globulin, and fibrinogen
T-Cells (Cell-Mediated Immunity)
Directly attack pathogens
B-Cells (Humoral Immunity)
Produce antibodies
Agranulocytes
Release lymphocytes and monocytes
Monocytes
Leave bloodstream to become macrophages
Lymphocytes
Release T-Cells and B-Cells
Granulocytes
Release basophils, eosinophils, and neutrophils
Basophils
Release histamine and heparin
Eosinophils
Activate moderate allergic reactions
Neutrophils
Microphages that are the first to arrive at infection site
Serotonin
Released by platelets to constrict blood vessels
Hemostasis
The stoppage of bleeding
