Chapter 19

The Blood

Hematocrit

Substances in Blood Plasma

• Water• Albumins• Globulins• Fibrinogen• Electrolytes• Nutrients• Gases• Regulatory substances• Waste products

Red Blood Cell Production Terms

• Hemopoiesis• Erythropoietin – secreted by

kidneys• Erythropoiesis• Hypoxia• Polycythemia

Hemoglobin

RBCRegulation

Types of WBC’sGranular and Agranular

Functions of WBC’s

• Neutrophils – Phagocytosis using lysozymes, defensins, and oxidants.

• Eosinophils - destroy parasites and combat histamines.

• Basophils – release heparin, histamine, and serotonin.

• Monocytes – Phagocytosis, clean cellular debris.

• Lymphocytes – B-cells, T-cells and NK-cells.

Diapedesis of WBC’s

WBC Terms

• Leukocytosis – above normal

• Leukopenia – below normal

• Phagocytosis

• Differential count

Platelet Plug

Blood clot

Platelet Terms

• Thrombopoietin

• Thrombocyte

• Hemostasis

• Anticoagulants (Heparin & Warfarin)

• Thrombus

• Embolus

• Thrombocytopenia

Clotting cascade

Blood Types

Rh Factor

Anemias

• Iron deficiency

• Pernicious (Low B12)

• Hemorrhagic

• Hemolytic

• Thalassemia

• Aplastic (loss of marrow)

Sickle Cell

Words to Know

• Hemophilia

• Leukemia

• Autologous transfusion

• Cyanosis

• Hemochromatosis

• Jaundice

• Septicemia