1. KINESIOLOGY CARDIOVASCULAR ANATOMY AND FUNCTION

2. Major Cardiovascular Functions  Delivery  Removal  Transport  Maintenance  Prevention

3. After blood has left the lungs, which chamber of the heart does it enter? Where does the left ventricle pump blood to? Which chamber of the heart does blood return to that has been through the systemic system? BLOOD FLOW THROUGH THE HEART

4. Cardiovascular System Pulmonary Circuit  To the lungs and back Systemic Circuit  To the rest of the body and back

6. THE HEART

8. THE CHAMBERS OF THE HEART  The atria are smaller than the ventricles  Why is the left ventricle thicker than the right ventricle?

9. INTERCALATED DISKS What are intercalated disks and what is their function?

10. THE INTRINSIC CONDUCTION SYSTEM

11. What is the function of the SA node? What is the function of the AV node? The AV bundle (bundle of His)? Bundle branches: right and left? Purkinje fibers?

14. Electrocardiogram (ECG)  Depolarization and Repolarization. What are they?  The P wave?  The QRS complex?  The T wave?  Electrical activity of the heart increases during both

15. PHASES OF THE RESTING ECG Atrial repolarization

16. PHASES OF THE RESTING ECG PQRS

17. CONTROL OF THE HEART  Parasympathetic Nervous System.  Sympathetic Nervous System.  Epinephrine and norepinephrine.

18. CARDIAC TERMS Heart Rate (40 million beats per year) Bradycardia Tachycardia Stroke Volume Cardiac Output (1,400 gallons a day) Cardiac Cycle (next slide)

19. CARDIAC CYCLE  Events that occur between two consecutive heartbeats (systole to systole)  Diastole?  Systole?

20. THE VASCULAR SYSTEM  Arteries  Arterioles  Capillaries  Venules  Veins 100,000 miles of blood vessels

21. ARTERIES

22. ARTERIOLES

23. CAPILLARIES

24. VEINS

26. CORONARY CIRCULATION

27. CORONARY ARTERIES Right Anterior Descending Artery Left Anterior Descending Artery Circumflex Artery

28. Coronary Artery Disease

30. THE BLOOD Red Blood Cells Hematocrit Blood Pressure

31. Red Blood Cells Hemaglobin

32. Hematocrit

34. Blood Pressure  What is a normal systolic blood pressure reading?  What is a normal diastolic blood pressure reading?  Systolic and Diastolic. What’s the difference?

35. Blood Pressure