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Influences on BP
Influences on Systolic & Diastolic Pressures
| Question | Answer |
|---|---|
| What is the definition of Systolic BP? | the pressure which develops during the contraction of the contraction of the LEFT Ventricle |
| What are the 3 influences of Systolic BP? | 1. Stroke Volume (Contractility); 2. HR; 3. Arterial COMPLIANCE |
| How does Stroke Volume influence Systolic BP? | INCREASE Stroke Volume --> INCREASE Systolic Pressure |
| What is the differnce between Compliance and Elasticity? | Compliance: ability to STRETCH; Elasticity: ability to squeeze back (recoil) |
| What effect would an increase in HR have on BP? | INCREASE HR --> INCREASE Systolic BP |
| What effect would a decrease in Arterial Compliance have on BP? | DECREASE Compliancy --> INCREASE Systolic Pressure |
| What effect would a decrease in Elasticity have on BP? | DECREASE Elasticity --> DECREASE Diastolic BP |
| What effect would an increase in HR and Contractility have on BP? | INCREASE HR --> INCREASE Diastolic BP |
| What effect would and increase in Peripheral Resistance have on BP? | INCREASE PR --> INCREASE Diastolic BPE PR --> |
| What is the definition of Peripheral Resistance? | the resistance within the Arteriole Network |