| Question |
Answer |
| highest resistant in CVS |
arterioles |
| largest total cross-sectional and surface area |
capillaries |
| veins |
under low pressure; high portion of blood |
| arteries |
deliver oxygenate blood to tissues; high pressure; stressed volume |
| Systolic pressure |
hightest arterial pressure during cardiac cycle; measured after heart contracts and blood ejected into arterial system |
| Diastolic pressure |
lowest arterial pressure during a cardiac cycle; measured when Heart is relaxed and blood is returning to the heart via veins |
| Pulse Pressure |
determinant of Stroke Volume |
| what can cause increase in PP |
aging |
| Pulse pressure calculations |
systolic - diastolic |
| arterial pressure is measurement of |
Left arterial pressure [PCWP] |
| Ejection fraction measured |
Stroke volume / EDV |
| what is normal EF |
55% |
| Preload measured by |
EDV and RA pressure |
| Afterload measured by |
LV = aortic pressure : increase in aortic pressure = Increase in afterload of LV
RV = pulmonary artery pressure; increase in pulmonary artery pressure causes increase in afterload in RV |
| what increases preload |
venous dilaters |
| what decreases afterload |
vasodilators |
Science Vocab 147928
