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05   the heart
05   the heart
05   the heart
05   the heart
05   the heart
05   the heart
05   the heart
05   the heart
05   the heart
05   the heart
05   the heart
05   the heart
05   the heart
05   the heart
05   the heart
05   the heart
05   the heart
05   the heart
05   the heart
05   the heart
05   the heart
05   the heart
05   the heart
05   the heart
05   the heart
05   the heart
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05 the heart

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  • 1. The Heart
  • 2. Superior vena cava inferior vena cava
  • 3. Superior vena cava inferior vena cava Right atrium Tricuspid valve
  • 4. Superior vena cava inferior vena cava Right atrium Tricuspid valve Right ventricle
  • 5. Superior vena cava inferior vena cava Right atrium Tricuspid valve Right ventricle Pulmonary valve Pulmonary artery
  • 6. Superior vena cava inferior vena cava Right atrium Tricuspid valve Right ventricle Pulmonary valve Pulmonary artery
  • 7. Superior vena cava inferior vena cava Right atrium Tricuspid valve Right ventricle Pulmonary valve Pulmonary artery LUNGS OXYGENATE THE BLOOD
  • 8. Superior vena cava inferior vena cava Right atrium Tricuspid valve Right ventricle Pulmonary valve Pulmonary artery
  • 9. Superior vena cava inferior vena cava Right atrium Tricuspid valve Right ventricle Pulmonary valve Pulmonary artery Left Atrium Mitral valve Pulmonary vein
  • 10. Superior vena cava inferior vena cava Right atrium Tricuspid valve Right ventricle Pulmonary valve Pulmonary artery Left Atrium Mitral valve Left ventricle
  • 11. Superior vena cava inferior vena cava Right atrium Tricuspid valve Right ventricle Pulmonary valve Pulmonary artery Left Atrium Mitral valve Left ventricle Aorta Septum Aortic valve
  • 12. Superior vena cava inferior vena cava Right atrium Tricuspid valve Right ventricle Pulmonary valve Pulmonary artery Left Atrium Mitral valve Left ventricle Aorta Septum Aortic valve
  • 13. Superior vena cava inferior vena cava Right atrium Tricuspid valve Right ventricle Pulmonary valve Pulmonary artery Left Atrium Left ventricle Aorta Septum Mitral valve Bicuspid valve Aortic valve
  • 14. Superior vena cava inferior vena cava Right atrium Tricuspid valve Right ventricle Pulmonary valve Pulmonary artery Left Atrium Mitral valve Left ventricle Aorta Septum Aortic valve
  • 15. atrioventricular valve atrioventricular valve semilunar valve semilunar valve
  • 16. Prosthetic Valves
  • 17. The Heart
  • 18. The Heartbeat
  • 19. Atrioventricular node Ventricles Atria Body/Lungs Atrioventricular Sinoatrial node Atria Ventricles Ventricles Semilunar SYSTOLE DIASTOLE The Heartbeat
  • 20. Blood Pressure: Measure of force of blood in arterial wall Normal blood pressure Sphygmomanometer The Heartbeat: Blood Pressure SYSTOLIC pressure DIASTOLIC pressure 120 80
  • 21. Heart disorders
    • Arrhythmia: Heart beats irregularly
    • Arises from problems with the electrical activity of the heart
    • Treatment may include implanting an artificial pacemaker or small defibrillator
  • 22. Heart disorders Ventricular fibrillation: Uncoordinated contraction of ventricles. This form of severe arrhythmia can be fatal, and is commonly identified in cardiac arrest patients.
  • 23. Heart disorders Heart murmurs: The heart makes extra sounds due to narrowing or leaking valves, or abnormal passages for blood flowing into or near the heart.
  • 24. Heart disorders Hypertension: High blood pressure ( 140/90 or higher ). Prolonged high blood pressure damages the heart and blood vessels . Heart must pump harder, and over time the heart muscles expand , causing them to weaken . They may also thicken . Artery walls may tear and speed up atherosclerosis due to vessel injury.
  • 25. Heart disorders Congenital heart defect: Defect of the structure of the heart and vessels , present at birth . Example: A septal defect is a hole in the septum , which allows oxygenated and deoxygenated blood to mix. 9 out of 1000 people are born with congenital heart defects.
  • 26. Heart disorders
    • Heart failure:
    • The heart cannot pump blood efficiently because:
    • It cannot fill with enough blood
    • OR
    • 2) Does not pump the blood with enough force
    • A heart transplant may be required.

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