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The largest artery in the body is the


A) coronary artery.
B) superior vena cava.
C) aorta.
D) pulmonary artery.
E) carotid artery.

F) None of the above
G) A) and B)

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Patients with cardiovascular problems can be prescribed many different medications. Aspirin inhibits platelets, beta-blockers slow the heart rate, and diuretics cause the kidneys to release more water in the urine. -Which drugs would be prescribed to a person who has high blood pressure?


A) aspirin
B) a beta-blocker
C) a beta-blocker and a diuretic
D) a diuretic
E) aspirin and a diuretic

F) A) and B)
G) C) and D)

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Since hemoglobin has a greater affinity for carbon monoxide than for oxygen,what would be a symptom of carbon monoxide poisoning?


A) hyperactivity
B) increased blood pH
C) decreased exhalation of oxygen
D) increased heart rate
E) decreased ATP production

F) C) and D)
G) B) and C)

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The widening of blood vessels is


A) vasoconstriction.
B) cardioconstriction.
C) vasodilation.
D) cardiodilation.
E) All answers are correct.

F) None of the above
G) C) and D)

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A frog can absorb oxygen through its skin and lungs.Which is an advantage of absorbing oxygen through the lungs?


A) The heart pumps oxygen from the lungs into the bloodstream.
B) Oxygen absorbed in the lungs enters the blood stream.
C) Air in the lungs has a higher concentration of oxygen than air in the atmosphere.
D) Oxygen diffuses across cells more slowly than across the lining of the lungs.
E) Lungs have more surface area than the skin.

F) A) and D)
G) B) and E)

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A heart murmur is caused by


A) a greater-than-normal force of contraction of the right atrium.
B) a constriction of the pulmonary artery.
C) blockage of the aorta.
D) the heart valves not functioning properly.
E) a greater-than-normal force of contraction of the left atrium.

F) C) and E)
G) A) and E)

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What drives the movement of oxygen from the alveoli into the bloodstream?


A) active transport against a concentration gradient
B) facilitated diffusion down a concentration gradient
C) facilitated diffusion against a concentration gradient
D) diffusion down a concentration gradient
E) the heart pumping the oxygen into the bloodstream

F) None of the above
G) A) and E)

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ATP is required by cells to provide power for


A) DNA replication.
B) movement.
C) production of proteins.
D) growth.
E) All answers are correct.

F) A) and E)
G) A) and D)

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Blood that reaches the heart tissue via the coronary artery has more oxygen in it than the tissue itself.

A) True
B) False

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Sleep apnea is temporarily ceasing to breathe and is more common in people who are overweight.Excess fat in the neck compresses the ________ cutting off air flow.


A) larynx
B) thorax
C) bronchi
D) lungs
E) alveoli

F) A) and E)
G) B) and C)

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The cellular components of blood that transport oxygen are


A) leukocytes.
B) red blood cells.
C) platelets.
D) cartilage cells.
E) bone cells.

F) A) and C)
G) A) and B)

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Each alveolus of the lung is a small sac with a wall of epithelial tissue that is many layers thick,thereby providing structural support for the air sacs.

A) True
B) False

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A person can donate blood every two months, platelets every two weeks, and plasma twice a week. In whole blood donation, the blood is collected directly into a bag until it is used in a transfusion. In platelet donation, the platelets are separated from the other blood cells by apheresis and saved; the other blood cells and plasma are injected back into the donor. In plasma donation, blood cells are separated, plasma is removed, and the blood cells are injected back into the donor. -Why could you donate plasma twice a week?


A) Plasma contains only proteins and fluid which can be replaced quickly.
B) Plasma contains platelets which can be replaced quickly.
C) Plasma contains red blood cells which can be replaced quickly.
D) Plasma contains only water and can be rapidly replaced.
E) Plasma is regenerated from the blood cells injected back into the donor.

F) A) and B)
G) A) and E)

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One of the main reasons that we exhale a higher percentage of carbon dioxide than we inhale is that


A) we use carbon dioxide to make glucose.
B) we produce carbon dioxide as a byproduct of aerobic respiration.
C) we produce carbon dioxide as a byproduct of transmission of nerve impulses across synapses.
D) carbon dioxide is a byproduct of photosynthesis.
E) carbon dioxide dissolves better in blood than does oxygen.

F) B) and E)
G) C) and E)

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Which is an artery that supplies blood to the heart muscle?


A) aorta
B) coronary artery
C) carotid artery
D) superior vena cava
E) inferior vena cava

F) A) and E)
G) B) and D)

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A person can donate blood every two months, platelets every two weeks, and plasma twice a week. In whole blood donation, the blood is collected directly into a bag until it is used in a transfusion. In platelet donation, the platelets are separated from the other blood cells by apheresis and saved; the other blood cells and plasma are injected back into the donor. In plasma donation, blood cells are separated, plasma is removed, and the blood cells are injected back into the donor. -Which is the correct order for the time required to replace each blood component from shortest to longest?


A) plasma, red blood cell, platelet
B) platelet, red blood cell, plasma
C) red blood cell, platelet, plasma
D) plasma, platelet, red blood cell
E) red blood cell, plasma, platelet

F) B) and D)
G) A) and B)

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If you came across a description of cellular components of blood that destroy foreign substances,you would be reading about 


A) red blood cells.
B) cartilage cells.
C) platelets.
D) leukocytes.
E) bone cells.

F) C) and E)
G) A) and D)

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The force that blood exerts on blood vessel walls is termed


A) venous pressure.
B) gravitational pressure.
C) blood pressure.
D) osmotic pressure.
E) pulmonary pressure.

F) C) and D)
G) A) and B)

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Capillary beds are networks of capillaries that connect arterioles and venules.

A) True
B) False

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An increase in the number of red blood cells is called anemia.

A) True
B) False

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