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Cardiac and Renal Medical Physiology ( Usmle Points)

Stroke Volume = Pulse pressure

Compliance of the arterial (Aorta) = Pulse pressure

Stroke Volume = Systolic pressure

Compliance of the arterial (Aorta) = Systolic pressure

Stroke Volume = Diastolic pressure (TPR)

Compliance of the arterial (Aorta) = Diastolic pressure (TPR)

Compliance of the arterioles = Diastolic pressure (TPR)

Compliance of the arterioles = Diastolic pressure (TPR)

Cardiac Output = Compliance of the arterioles = Diastolic pressure (TPR)

Cardiac Output = Compliance of the arterioles = Diastolic pressure (TPR)

Mean Arterial pressure = Compliance of the arterioles = Diastolic pressure (TPR)

Mean Arterial pressure = Cardiacoutput

Blood Flow (volume) = Pressure

Radius (compliance) Vessel = Pressure= Resistance

Venous pressure = Compliance of the Vein (venoconstriction) = Venous blood volume

(leg Pooling) = Venous Blockage

Arterial pressure = Cardiac output (right atria pressure) = Venous pressure (venous

return)

Central venous pressure (right atria pressure) = Cardiac output = venous return

(venous pressure)

Blood Volume = Mean Circulatory pressure = Exists with zero flow

Mean Circulatory pressure = Central venous pressure = No venous return

Venous return = End diastolic volume (end diastolic pressure) (preload) = Stroke volume

Afterload (Aortic pressure) (Diastolic pressure (TPR)) = End systolic volume (pressure)

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Dilation of Arterioles (stress volume) = capillary pressure = Venous volume

(unstressed volume)

Constriction of arterioles (stress volume) = venous return = Cardiac output

Dilation of Arterioles = capillary pressure = Venous pressure (venoconstriction) (Bloodvolume) (veno blockage)

(more) Diastolic time = Heart rate = (less) Systolic time

coronary flow = Heart rate = Diastolic volume (diastolic pressure) = Stroke Volume

Aortic Volume (pressure) = Coronary flow

Active hyperemic: metabolites (Adenosine, CO2, K, ADP, low O2)(exercise) = Blood flowReactive hyperemic: metabolites (Adenosine, CO2, K, ADP, low O2)(blockage) = Blood flow

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RPF GFR FF (

)

Afferent

Constriction

Afferent Dilation Efferent

Constriction (mild)

Efferent

Constriction

(Several)

Efferent Dilation

Plasma Protein or

Plasma protein or Ureteral

Constriction(stone)or

Mesangial cell

Contraction

Mesangial cell

Relax

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