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Professor Md.Toufiqur Rahman
MBBS, FCPS, MD, FACC, FESC, FRCP, FSCAI,
FCCP,FAPSC, FAPSIC, FAHA,FACP,FASE
Professor and Head of Cardiology
Colonel Malek Medical College , Manikganj
.
drtoufiq19711@yahoo.com
Physiology of
Cardiovascular System
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
The Heart’s Cardiac Cycle
• Atria contract simultaneously
• Atria relax, then ventricles contract
• Systole = contraction
• Diastole = relaxation
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Heart Contractions
• Contraction is initiated by the sinoatrial node
• Sequential stimulation occurs at other autorhythmic cells
Filling of Heart Chambers – the Cardiac
Cycle
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
The Heart: Cardiac Cycle
• Cardiac cycle – events of one complete heart
beat
– Mid-to-late diastole – blood flows into ventricles
– Ventricular systole – blood pressure builds before
ventricle contracts, pushing out blood
– Early diastole – atria finish re-filling, ventricular
pressure is low
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
The Heart: Cardiac Output
• Cardiac output (CO)
– Amount of blood pumped by each side of the
heart in one minute
– CO = (heart rate [HR]) x (stroke volume [SV])
• Stroke volume
– Volume of blood pumped by each ventricle in one
contraction
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Cardiac Output Regulation
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman
Physiology of cardiovascular system   dr toufiqur rahman

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Physiology of cardiovascular system dr toufiqur rahman

  • 1. Professor Md.Toufiqur Rahman MBBS, FCPS, MD, FACC, FESC, FRCP, FSCAI, FCCP,FAPSC, FAPSIC, FAHA,FACP,FASE Professor and Head of Cardiology Colonel Malek Medical College , Manikganj . drtoufiq19711@yahoo.com Physiology of Cardiovascular System
  • 12. The Heart’s Cardiac Cycle • Atria contract simultaneously • Atria relax, then ventricles contract • Systole = contraction • Diastole = relaxation
  • 17. Heart Contractions • Contraction is initiated by the sinoatrial node • Sequential stimulation occurs at other autorhythmic cells
  • 18. Filling of Heart Chambers – the Cardiac Cycle
  • 25. The Heart: Cardiac Cycle • Cardiac cycle – events of one complete heart beat – Mid-to-late diastole – blood flows into ventricles – Ventricular systole – blood pressure builds before ventricle contracts, pushing out blood – Early diastole – atria finish re-filling, ventricular pressure is low
  • 29. The Heart: Cardiac Output • Cardiac output (CO) – Amount of blood pumped by each side of the heart in one minute – CO = (heart rate [HR]) x (stroke volume [SV]) • Stroke volume – Volume of blood pumped by each ventricle in one contraction