Wiggers Diagram Intracardiac Pressures
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| The pressure of the Aorta in Systole? | 110-130 mmHg
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| What is the pressure of the Aorta in Diastole? | 70-80 mmHg
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| What is the Systolic pressure of the Pulmonary Artery? | 15-25 mm Hg
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| What is the Diastolic range of the Pulmonary Artery? | 8-15 mm Hg
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| The Left Atrium's MEAN pressure is what? | 4-12 mm Hg
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| The Left Ventricle's Systolic pressure measured in mmHg? | 110-130 mm Hg
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| 4-12 mm Hg in DIASTOLIC | The Left Ventricle
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| 15-25 mm Hg SYSTOLIC | Right Ventricle
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| Diastolic pressure of Right Ventricle in Diastole | 0-8 mm Hg
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| Mean Pressure of 0-8 mm Hg | Right Atrium
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| What pressure gradient does blood flow? | High to low
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| What happens to the flow of blood as the pressures equilibrate? | Decreases
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| Systemic Arterial System | Organs of the body receive blood via this system
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| The cardiac valves open and close due to | Change in pressure
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| At the onset of the QRS complex what do the AV valves do? | The atrioventricular valves close
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| Ventricular pressure exceeds atrial pressure at what part on the EKG? | QRS complex
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| When do the atrioventricular valves close? | When ventricular pressure exceeds atrial pressure
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| The atrioventricular valves open at what part on the EKG? | End of the T wave
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| What do the atrioventricular valves do when ventricular pressure drops below atrial pressure? | Open
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| Atrioventricular valve that opens first and closes last | Tricuspid valve
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| Atrioventricular valve that opens last and closes first | Mitral Valve
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| Semilunar valve that opens first and closes last | Pulmonic Valve
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| Semilunar valve that opens last and closes first | Aortic Valve
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| The ventricular pressure drops below arterial pressure | End of ventricular systole
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| The Semilunar valves close when | Ventricular pressure drops below arterial pressure
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| The Semilunar valves open when | Ventricular pressure exceeds arterial pressure
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| Ventricular pressure exceeds arterial pressure | In early ventricular systole
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| The Semilunar valves close | At the end of ventricular systole
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| In early ventricular systole | The semilunar valves open
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| Ventricular Diastole represents | The period of time the ventricles are filling
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| Between the end of the T wave and the onset of the QRS complex | Ventricular Diastole
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| Approximately 70% of the Diastolic filling occurs during | Early Ventricular Diastole
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| Mid-Diastole when there is equilibration of ventricular and atrial diastolic pressures with little filling of the ventricles occurring during this time period | Diastasis
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| Late diastolic filling due to atrial contraction as marked by the P wave of the EKG | Atrial Systole
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| Atrial Systole | Contributes about 30% to ventricular diastolic filling.
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| Isovolumic contraction also know as | Pre-ejection period
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| An early systolic event occurring between atrioventricular valve closure and semilunar valve opening | Isovolumic contraction
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| Isovolumic contraction | An increase in ventricular pressure with no change in ventricular volume
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| Ventricular SYSTOLE occurs between the onset of ______ and end of ________ | QRS, the T-wave
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| Ventricles are ejecting blood into the great arteries | Systolic ejection period or time
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| When the ventricles are ejecting blood into the great arteries | Ventricular systole occurs
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| Ventricular volume is lowest at | Peak ventricular SYSTOLE
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| At peak ventricular systole | ventricular volume is lowest
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| Isovolumic relaxation represents | Early ventricular diastole
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| Begins with the closure of the semilunar valves to the opening of the atrioventricular valves | Isovolumic relaxation
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| Early ventricular diastole | Begins with the closure of the semilunar valves to the opening of the atrioventricular valves
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| During isovolumic relaxation | The ventricular pressure is decreasing with no change in ventricular volume
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| The ventricular pressure is decreasing with no change in ventricular volume | During isovolumic relaxation
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| Blood flows from | High pressure to low pressure
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| High to Low | Flow of blood
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| Atrioventricular valve regurgitation | Will increase the atrial "v" wave
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| An increase in atrial "v" wave | Shows atrioventricular valve regurgitation
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| Shows an increase in atrial "a" wave | Atrioventricular valve stenosis
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| CHF, constrictive pericarditis, restrictive cardiomyopathy and diastolic dysfunction | Will increase ventricular diastolic pressure
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| Will increase pulmonary artery pressures | Left to right shunts, pulmonary hypertension or left heart disease
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| S1 is the first normal heart sound and is created by | The closure of the atrioventricular valves at the onset of the QRS complex where ventricular pressure exceeds atrial pressure
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| The closure of the atrioventricular valves at the onset of the QRS complex where ventricular pressure exceeds atrial pressure | S1
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| S2 is the second normal heart sound and is created by closure of the semilunar valves | At the end of the T-wave where arterial pressure falls below ventricular pressure
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| At the end of the T-wave where arterial pressure falls below ventricular pressure, this is created by closure of the semilunar valves | S2
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