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12 Cards in this Set
- Front
- Back
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Blood flow through a vessel depends on two things |
Pressure difference between the two ends and vascular resistance (impediment of blood flow through the vessel) |
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Blood flows from areas of __ pressure to ___ pressure |
High to low |
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Arterial walls are thicker and stronger than veins, veins have thinner walls that are ___ times more distensible (can dialate) |
6 to 10 times |
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Arterioles control pressures and ___ during exercise |
Dialate during exercise to pump more blood |
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The body contains more ___ compared to other parts of the vascular system |
Veins |
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___ pushes blood up the veins in the legs |
Muscle contraction |
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The pulsitile nature of the cardiac cycle causes pressure variation (systole and diastole) or blood pressure |
120 systole / 80 diastole is normal |
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The left side of the heart pressure is higher and the right side pressure is lower to help with |
Venous return |
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Which form of energy provides fundamental pressure within the cardiovascular system |
Potential energy=pressure energy |
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Pressure does not affect velocity |
The decrease on the area in a vessel doesn't increase the speed of the blood |
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Kinetic energy is the energy of motion (velocity) and can increase with |
Exercise and stenosis |
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Distal to stenosis |
Velocity decreases |
