1. Chapter 11 Introduction to the Heart
Essentials of Human Anatomy & Physiology
Seventh Edition
Elaine N. Marieb
Chapter 11 Introduction to the Heart
Lecture Slides in PowerPoint by Jerry L. Cook
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

2. The Heart: In Thoracic Cavity
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Figure 11.1

3. Blood Circulation Heart is a “double pump” for 2 circuits:
Pulmonary – to and from lungs
Systemic – to and from body tissues
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
Figure 11.3

4. Blood Circulation Right side of heart: deoxygenated blood
Left side of heart:
oxygenated blood
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
Figure 11.3

5. External Heart Anatomy
4 chambers: atria receive; ventricles pump
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
Figure 11.2a

6. External Heart Anatomy
4 chambers: atria receive; ventricles pump
left atrium
right atrium
left ventricle
right ventricle
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
Figure 11.2a

7. External Heart Anatomy
Veins bring blood to the heart from body and lungs.
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
Figure 11.2a

8. External Heart Anatomy
Veins bring blood to the heart from body and lungs.
superior vena cava
left pulmonary vein
right pulmonary vein
inferior
vena cava
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
Figure 11.2a

9. External Heart Anatomy
Arteries take blood away from the heart to body and lungs.
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
Figure 11.2a

10. External Heart Anatomy
Arteries take blood away from the heart to body and lungs.
aorta
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
Figure 11.2a

11. ascending and descending branches
External Heart Anatomy
Arteries take blood away from the heart to body and lungs.
ascending and descending branches
aorta
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
Figure 11.2a

12. External Heart Anatomy
Arteries take blood away from the heart to body and lungs.
aorta
pulmonary trunk
(artery)
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
Figure 11.2a

13. branches into right and left pulmonary arteries
External Heart Anatomy
Arteries take blood away from the heart to body and lungs.
branches into right and left pulmonary arteries
pulmonary trunk
(artery)
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
Figure 11.2a

14. Internal Heart Anatomy
Valves separate chambers and arteries
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
Figure 11.2a

15. Internal Heart Anatomy
Valves separate chambers and arteries
bicuspid
(mitral)
valve
tricuspid
valve
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
Figure 11.2a

16. Internal Heart Anatomy
Valves separate chambers and arteries
aortic semilunar valve
pulmonary semilunar valve
bicuspid
(mitral)
valve
tricuspid
valve
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
Figure 11.2a

17. Video Clip of Cardiac Cycle

18. Video Clip of Heart Action
NOVA: The Universe Within (Mike Powell- muscular and cardiovascular systems)