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KINESIOLOGY CARDIOVASCULAR ANATOMY AND FUNCTION
KINESIOLOGY
CARDIOVASCULAR ANATOMY AND FUNCTION
Major Cardiovascular Functions
Delivery
Removal
Transport
Maintenance
Prevention
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
Cardiovascular System
Pulmonary Circuit To the lungs and back
Systemic Circuit To the rest of the body
and back
THE HEART
THE CHAMBERS OF THE HEART
The atria are smaller than the ventricles
Why is the left ventricle thicker than the right ventricle?
INTERCALATED DISKS
What are intercalated disks and what is their function?
THE INTRINSIC CONDUCTION SYSTEM
THE INTRINSIC CONDUCTION SYSTEM
• 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?
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
PHASES OF THE RESTING ECG
Atrial repolarization
PHASES OF THE RESTING ECG
P QRS
CONTROL OF THE HEART
Parasympathetic Nervous System.
Sympathetic Nervous System. Epinephrine and norepinephrine.
CARDIAC TERMS
• Heart Rate (40 million beats per year)• Bradycardia• Tachycardia
• Stroke Volume• Cardiac Output (1,400 gallons a day)• Cardiac Cycle (next slide)
CARDIAC CYCLE
Events that occur between two consecutive heartbeats (systole to systole)
Diastole?
Systole?
THE VASCULAR SYSTEM
Arteries
Arterioles
Capillaries
Venules
Veins
100,000 miles of blood vessels
ARTERIES
ARTERIOLES
CAPILLARIES
VEINS
CORONARY CIRCULATION
CORONARY ARTERIES
•Right Anterior Descending Artery
•Left Anterior Descending Artery
•Circumflex Artery
Coronary Artery Disease
Coronary Artery Disease
THE BLOOD
Red Blood Cells Hematocrit Blood Pressure
Red Blood Cells
Hemaglobin
Hematocrit
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?
Blood Pressure
Blood Pressure
