1. Human Biology CHAPTER 7 BLOOD Concepts and Current Issues
PowerPoint® Lecture Slide Presentation by Robert J. Sullivan, Marist College
Human Biology
Concepts and Current Issues
Second Edition
MICHAEL D. JOHNSON
CHAPTER 7 BLOOD
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings.

2. The Functions of the Circulatory System
Figure 7.1B

3. The Functions of Blood Transportation: nutrients, waste, hormones
Regulation: temperature, water volume, pH
Defense: against infections and bleeding

4. The Components of Blood
Plasma (55%)
Electrolytes
Proteins (albumins, globulins, clotting proteins)
Hormones
Gases
Nutrients and wastes
Formed elements (45%)
RBCs
WBCs
Platelets

5. Red Blood Cells Functions: transport oxygen and carbon dioxide
Measurement: hematocrit, hemoglobin
Origin: stem cells
Life span: 120 days in humans
Control of production: erythropoietin

6. White Blood Cells
Functions: protection from infection, regulating the inflammatory reaction
Types:
Granular: neutrophils, eosinophils, basophils
Agranular: lymphocytes, monocytes

7. Hemostasis
Stages:
Vascular spasm: constrict blood vessels to reduce blood flow
Platelet plug formation: seal the ruptured blood vessel
Coagulation: formation of a blood clot

8. Blood Types Determine Blood Compatibility
Figure 7.11

9. Blood Typing Concepts Antigen vs. antibody ABO system
Rh system and Rh factor in pregnancy

10. Blood Disorders Carbon monoxide poisoning: competes with oxygen
Anemia: reduction in oxygen-carrying capacity
Leukemia: a form of cancer
Multiple myeloma: a form of cancer
Mononucleosis: Epstein-Barr virus infection
Septicemia: “blood poisoning”
Thrombocytopenia: reduction in platelet number