Cardiovascular System

An older man visits the doctor and learns that he has a disease known as Atherosclerosis, where there is a build up of fat and cholesterol inside his blood vessels.  Which of the following is a result of his condition?

• Increased blood pressure

• Increased blood volume

• Decreased blood volume

• Decreased blood pressure

What would you expect to happen to a person's blood pressure if they started to exercise regularly and reduced the plaque build up on the artery walls? 

• High blood volume

• Increased blood pressure

• Decreased blood pressure

• Increased risks for diseases

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What will happen to the blood pressure of an individual that suffers an injury leading to a  drop in blood volume?

• Increase in blood viscosity

• Decrease in blood pressure

• Increase in vessel resistance

• Decrease in heart rate

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The rate at which blood flows through the human body changes in response to many factors. Which statement describes one of these factors and its effect on blood flow?

• The changing of the shape of red blood cells to a crescent shape decreases resistance and lead to a faster blood flow.

• A low blood pH decreases the rate of diffusion through the blood vessels and leads to slow blood flow.

• A high viscosity of blood causes an increased resistance in the blood vessels and leads to slow blood flow.

• The narrowing of blood vessels increases pressure and leads to a faster blood flow.

Which of the following factors has the greatest effect on blood pressure?

• Blood Oxygen

• Blood Volume

• Blood pH

• Blood Glucose

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Which of the following factors decreases blood flow?

• Increase in overall blood volume

• Increase in blood pressure

• Decrease in blood viscosity

• Decrease in the diameter of a blood vessel