2010-PSL-200-201--Cardio-04of07

2010-PSL-200-201--Cardio-04of07 - 1 Cardiovascular...

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Unformatted text preview: 1 Cardiovascular Physiology 4/7 Department of Physiology Nohjin Nohjin Kee Kee , Ph.D. , Ph.D. Email: Email: nohjin.kee@utoronto.ca nohjin.kee@utoronto.ca Chapter 13 Chapter 13 2 The rate at which a ventricle pumps blood is called CARDIAC OUTPUT (CO) = L/min CO = HR SV n Heart rate (HR) n Stroke volume (SV) - the volume of blood that is pumped from each ventricle with every beat HR and SV are same for right and left side of the heart Because CO is affected by HR and SV, we will look at the influences (both extrinsic and intrinsic) on these parameters HR is highly variable between individuals and in a single individual from day to day and minute to minute. This is because HR is dependent on many factors including age, sex, general health, muscular activity and emotional state Cardiac Output ardiac Output 3 The rate at which a ventricle pumps blood is called CARDIAC OUTPUT (CO) = L/min CO = HR SV n Heart rate (HR) n Stroke volume (SV) - the volume of blood that is pumped from each ventricle with every beat HR and SV are same for right and left side of the heart Because CO is affected by HR and SV, we will look at the influences (both extrinsic and intrinsic) on these parameters HR is highly variable between individuals and in a single individual from day to day and minute to minute. This is because HR is dependent on many factors including age, sex, general health, muscular activity and emotional state Cardiac Output ardiac Output 4 The rate at which a ventricle pumps blood is called CARDIAC OUTPUT (CO) = L/min CO = HR SV n Heart rate (HR) n Stroke volume (SV) - the volume of blood that is pumped from each ventricle with every beat HR and SV are same for right and left side of the heart Because CO is affected by HR and SV, we will look at the influences (both extrinsic and intrinsic) on these parameters HR is highly variable between individuals and in a single individual from day to day and minute to minute. This is because HR is dependent on many factors including age, sex, general health, muscular activity and emotional state Cardiac Output ardiac Output 5 The rate at which a ventricle pumps blood is called CARDIAC OUTPUT (CO) = L/min CO = HR SV n Heart rate (HR) n Stroke volume (SV) - the volume of blood that is pumped from each ventricle with every beat HR and SV are same for right and left side of the heart Because CO is affected by HR and SV, we will look at the influences (both extrinsic and intrinsic) on these parameters HR is highly variable between individuals and in a single individual from day to day and minute to minute. This is because HR is dependent on many factors including age, sex, general health, muscular activity and emotional state Cardiac Output ardiac Output 6 The rate at which a ventricle pumps blood is called CARDIAC OUTPUT (CO) = L/min CO = HR SV n Heart rate (HR) n Stroke volume (SV) - the volume of blood that is pumped from each ventricle with every beat HR and SV are same for right and left side of the heart...
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2010-PSL-200-201--Cardio-04of07 - 1 Cardiovascular...

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