Mod 4 Review AP

Which of the following occurs when blood vessels dilate?

• Increase in blood pressure

• Decrease in blood pressure

• Increase in blood volume

• Decrease in blood volume

Which of the following occurs when the heart forcefully contracts?

• Increased blood pressure

• Decreased blood pressure

• Increased blood volume

• Decreased blood volume

Which of the following affects blood volume?

• The speed at which the blood flows

• The strength at which the heart contracts

• The amount of water present in the blood

• The rate at which the heart contracts

Which of the following blood vessels would have the highest blood pressure?

• A dilated vessel with high blood volume

• A constricted vessel with high blood volume

• A dilated vessel with low blood volume

• A constricted vessel with low blood volume

What effect will wrapping a tight band around the arm for a period of time have on blood flow?

• It will increase blood pressure both proximal and distal to the band.

• It will increase blood pressure proximally from the band.

• It will decrease blood pressure both proxmial and distal to the band.

• It will decrease blood pressure proximally from the band.

Alcoholic beverages A) dilate the blood vessels and B) increase the amount of water removed from the blood. How would factors A and B affect blood pressure?

• Factor A would increase blood pressure while factor B would decrease blood pressure, causing no net change.

• Factor A would decrease blood pressure while factor B would increase blood pressure, causing no net change.

• Both factors would increase blood pressure.

• Both factors would decrease blood pressure.

Hemophilia is a genetic blood disorder that is caused by a defective protein in the platelets. What would happen to a person with hemophilia if he cut his skin?

• The cut would become infected because the blood cannot fight foreign pathogens.

• Blood from the cut would be thin and light red because it contained little hemoglobin.

• The cut would bleed uncontrollably because a clot could not form to seal the blood vessel.

• Blood from the cut would quickly clot, as this individual has an excessive number of platelets.

A person is complaining of lightheadedness. Which of the following could be a possible cause?

• Anemia, reducing the delivery of oxygen to the brain

• Anemia, reducing the delivery of plasma to the brain

• Hypertension, reducing the delivery of oxygen to the brain

• Hypertension, reducing the delivery of plasma to the brain

Which of the following is a result of elevated levels of white blood cells and reduced levels of red blood cells in the body?

• Efficiency of oxygen transport is reduced due to an infection.

• Efficiency of nutrient transport is reduced due to an infection.

• Efficiency of oxygen transport is reduced, but not due to an infection.

• Efficiency of nutrient transport is reduced, but not due to an infection.

Which of the blood components in the diagram would proliferate during a viral infection?

• A

• B

• C

• D