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Would stroke volume increase or decrease if your unhealthy?
increase because the more unhealthy you are leads to you to eating more unhealthy things witch can cause strokes
Would an increase in contractility cause an increase to cardiac output?
Yes - an increase in contractility would lead to an increase in stroke volume. An increased stroke volume would cause an increased cardiac output.
How would a decrease in blood volume affect both stroke volume and cardiac output?
It's decreased ... unless the rate falls, which is the normal cardiac response.
What is happening to the substances mass and volume to cause this decrease in density?
A decrease in density would indicate a reduction in mass relative to the volume. If the mass decreases but the volume remains the same or increases, then the density would decrease.
If you squeezed a balloon and made it smaller would the density in the air would become greater?
Yes. When you squeeze the balloon, you cause the volume to decrease. Since density is determined by dividing mass by volume, a decrease in volume will cause an increase in denisty.
Which of the following would cause the greatest increase in cardiac output?
Increased heart rate and increased stroke volume
When a substance changes from a solid to a liquid its density normally decreases. What is happening to the substance's mass and volume to cause this decrease in density?
A decrease in density would indicate a reduction in mass relative to the volume. If the mass decreases but the volume remains the same or increases, then the density would decrease.
How does crank angle effect volume of cylinder?
The crank angle would change the stroke. The stroke would change the volume.
What would happen if blood started flowing backward through a valve?
If blood starts flowing backwards through a valve, stroke volume and ejection fraction would decrease. The heart's pumping action would be less efficient.
How would volume differ if a balloon was filled with a very polar gas instead of helium?
Polar gases would have some mutual attraction and there by observe a decrease in volume so the volume of the balloon would decrease.
What would happen to a balloon full of air if you moved it from above a water surface to ten feet below the water surface?
The volume of the balloon would decrease. The pressure of the water would press inward on the balloon and cause it to shrink in volume.
Explain why severe vomiting and diarrhea would cause a decrease in the blood volume?
because it causes dehydration therefore there loss of water in the blood plasma
