REGULATION OF BLOOD PRESSURE

MABP = CO x TPR

Mean Arterial Blood Pressure

Mean Arterial Blood Pressure =

Cardiac Output =

Total Peripheral Resistance =

CO = HR x SV

Cardiac Output

Heart Rate =

Stroke Volume =

Branched Blood Vessel

MABP = DP + 1/3(PP)

Mean Arterial Blood Pressure

Diastolic Pressure =

Systolic Pressure =

Pulse Pressure =

Vasodilation & Vasoconstriction

Hemorrhage

VR = BV/VC

Venous Return

Venous Return =

Blood Volume =

Venous Compliance =

Stroke VolumeSV = EDV – ESV

End-Diastolic Volume =

End-Systolic Volume =

Frank-Starling LawThe Frank-Starling Mechanism states that the greater the volume of blood entering the heart during diastole, the greater the volume of blood ejected during systolic contraction.

Frank-Starling Law =

Response to Decreased MABP

1. Venoconstriction

2. Increased Contractibility

3. Increased Heart Rate

4. Vasoconstriction

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