Adult Health NR324 (HEMATOLOGY) -

Adult Health NR324 (HEMATOLOGY) - Chamberlain. Hematologic system consists of blood and the sites where blood is produced Blood is composed of plasma and various types of cells: - RBC - WBC - Platelets Plasma is fluid portion consisting of various proteins, such as: - albumin - globulin - fibrinogen - electrolytes - waste products - nutrients Bone Marrow contains stem cells committed to produce specific types of blood cells Erythrocytes Red Blood Cells (RBCs): delivers oxygen to tissues/body cells Erythropoiesis formation of red blood cells (myeloid stem cell) Erythropoietin hormone produced by primarily kidney Leukocytes white blood cells (WBCs): protect the body from invasion by bacteria Granulocytes eosinophils basophils neutrophils Monocytes transform into macrophages Lymphocytes immune system: produce antibodies Platelets (thrombocytes) essential role in the control of bleeding Hemostasis process of preventing blood loss from intact vessels and stopping bleeding from a severed vessel Spleen Location: upper left quadrant of abdomen - Removes old RBC's - Stores platelets and WBC's - Helps fight certain bacteria that can cause pneumonia and meningitis (vaccination important) Liver