Download 1. Which of the following statements about arteries is FALSE? a. The

1. Which of the following statements about arteries
is FALSE?
a. The blood pressure in arteries is higher
than that in the veins.
b. Arteries have thick walls that contain
layers of muscle and connective tissue
c. Arteries have one-way valves to
prevent blood from flowing backwards
d. Arteries contain only oxygenated blood
e. All of the above
8. Rheumatic fever is a bacterial disease that can
result in degeneration of heart valves. That
would cause
a. slower heartbeat
b. uncoordinated attraction of ventricles
c. faster heart beat
d. backfire of blood from ventricle to an
atrium
2. The aorta
a. is the largest artery
b. is the largest vein
c. contains blood with low pressure
d. connects right and left ventricles
9. Which statement is NOT true?
a. Plasma is primarily water.
b. Red blood cells carry oxygen.
c. White blood cells defend the body
against disease.
d. Platelets are large cells that aid in blood
clotting.
3. Which set of chambers supplies blood to the
pulmonary circulation?
a. The atria
b. The ventricles
c. The right atrium and right ventricle
d. The left atrium and left ventricle
10. If a person weighed 100 pounds, what would be
the weight of their blood?
a. 5 to 6 pounds
b. 8 pounds
c. 10 pounds
d. 12 pounds
4. Which heart chamber is the most muscular?
a. The right atrium
b. The left atrium
c. The right ventricle
d. The left ventricle
11. Red blood cells constitute _____ of the total
blood volume in females.
a. 30%
b. 35%
c. 40%
d. 45%
e. 50%
5. The left ventricle is more muscular than the right
ventricle because:
a. it must push the blood through the
pulmonary circulation.
b. it must pass the blood through the
systemic circulation.
c. it must push against gas pressure in the
lungs.
d. both b and c are correct.
6. In a mammal, blood with a low oxygen content
enters the __________ of the heart.
a. right atrium
b. right ventricle
c. left atrium
d. left ventricle
e. aorta
7. Ventricles force blood directly into
a. Veins
b. Arteries
c. Capillaries
d. Arterioles
e. Venules
12. If you remove red blood cells, white blood cells
and platelets from blood you have
a. salty water
b. plasma
c. lymph
d. albumin
13. The maximum number of molecules of oxygen
that can bind with one molecule of human
hemoglobin is?
a. 1
b. 2
c. 3
d. 4
e. 5
14. How long does the average red blood cell live?
a. 90 days
b. 100 days
c. 120 days
d. 150 days
e. It depends upon the amount of oxygen
and the amount of hemoglobin the cell
carries.
e.
15. Return of blood to the heart in the systemic
venous circulation is driven primarily by
a. contractions of the left auricle
b. muscles squeezing blood through the
veins
c. ciliated cells lining the inside of the
veins
d. all of these
16. Erythropoietin
a. is produced by the kidneys.
b. is released in response to high carbon
dioxide or low oxygen levels in the
blood.
c. is only released in response to
hemorrhaging.
d. stimulates the spleen to release more
red blood cells.
17. Which blood constituent makes up more of the
volume of blood?
a. Red blood cells
b. Plasma
c. White blood cells
d. Blood proteins
e. They each constitute about 25% of the
total volume.
18. Erythrocytes are produced in the
a. bone marrow
b. liver
c. spleen
d. heart
19. Plasma that leaks out of the blood in the
capillary beds is returned to the venous
circulation by
a. the small intestine
b. suppressor B cells
c. the lymphatic system
d. the inflammatory response
20. Most of the plasma is
a. Protein
b. Salt
c. Cells
d. Gases
e. Water
21. Approximately 99% of blood cells are involved
in
a. Immunity
b. Transporting oxygen
c. Eating invaders
d. Amoeba-like activities
Entering and leaving the blood stream
22. Which of the following is NOT true of
hemoglobin? It
a. Is found in all blood cells
b. Carries oxygen
c. Carries carbon dioxide
d. Contains iron
e. Is red
23. Females need more dietary iron than males
because
a. They have more red blood cells.
b. They have less bone marrow.
c. They lose iron during menstruation.
d. They have a larger volume of blood.
e. They are less able to absorb iron.
24. Athletes such as long distance runners like to
train at high altitudes because the lack of oxygen
there stimulates the
a. Body to produce more lung tissue
b. Bone marrow to make more
erythrocytes
c. Muscles to contract aerobically
d. Muscles to contract more strongly
e. Capillaries to diffuse oxygen more
readily
25. Some athletes use "blood doping"ƒƒadding
RBC's to thin blood prior to competition. This
would
a. make heart beat faster
b. increase O2 delivery to muscles
c. decrease blood pressure
d. change blood type
26. WBC's
a.
b.
c.
d.
carry O2 in blood
protect body from microbes
are formed in the spleen
clot blood
27. Which is the correct sequence of blood vessels
from the heart through the body and back to the
heart?
a. Veins venules capillaries arterioles
arteries
b. Arterioles arteries capillaries veins
venules
c. Arteries arterioles veins venules
capillaries
d. Veins venules arteries arterioles
capillaries
e. Arteries arterioles capillaries venules
veins
28. When your physician takes your pulse, she is
feeling the expansion and contraction of your
a. Arteries or arterioles
b. Capillaries
c. Veins or venules
d. Both a and c are correct
29. Which is smallest:
a. Artery
b. Arteriole
c. Capillary
d. Venule
e. Vein
30. You are about to give blood for the first time.
While watching everyone else, you become pale
and have to sit down before you faint. The
vessels that constricted, producing this pallor are
a. Arteries
b. Arterioles
c. Capillaries
d. Venules
e. Veins
31. Which of the types of blood vessels is directly
involved in the exchange of materials between
blood and tissues?
a. Arteries
b. Arterioles
c. Capillaries
d. Lymphatics
e. Veins
32. What happens to the speed of blood as it passes
through the capillaries?
a. Increases slightly
b. Decreases slightly
c. Increases greatly
d. Drops almost to zero
e. It depends on the location of the
capillaries
33. The role of valves in the veins is to
a. Keep the blood from flowing backward
when the veins are squeezed by the
skeletal muscles
b. Push the blood upward toward the heart
c. Slow blood flow in the veins so that the
blood can move more slowly in the
capillaries
d. Block the flow of blood to the heart
until it has time to contract again
e. Push the blood back toward the
capillaries so that all the oxygen can be
removed
34. Accumulation of cell waste would cause nearby
precapillary sphincters to
a. Relax
b. Contract
c. Lengthen
d. Shorten
e. It would have no effect on precapillary
sphincters.
35. As you sit here taking this test, you would
expect the precapillary sphincters in your little
toe to be __________ compared with those in
the hand you are using to write with.
a. Longer
b. Shorter
c. More open
d. Less open
e. Open about the same
36. In what way do lymph capillaries differ from
blood capillaries? Lymph capillaries
a. Contain red blood cells
b. Have a wall of only one cell layer
c. Begin with blind ends throughout
interstitial fluid
d. Are made by lymphocytes
e. Contain plasma
37. Which statement is NOT true?
a. Lymphatic vessels resemble veins.
b. The lymphatic system returns fluids to
the blood.
c. The lymphatic system transports
carbohydrates from the small intestine
to the blood.
d. The lymphatic system helps defend the
body against disease.
38. Which of the following is NOT part of the
lymphatic system?
a. Thymus
b. Thyroid
c. Spleen
d. All of the above are part of the
lymphatic system.
e. None of the above are part of the
lymphatic system.
39. In an average person, how much fluid leaves the
capillaries per day?
a. 1 liter
b. 2 liters
c. 3 liters
d. 4 liters
e. 5 liters
40. Which of the following is delivered from the
small intestine to the bloodstream through the
lymphatic system?
a. Amino acids
b. Proteins
c. Carbohydrates
d. Lipids
41. When interstitial fluid enters the lymphatic
system, it is known as
a. Plasma
b. Intrastitial fluid
c. Globulin
d. Lymph
e. Macrophage
42. Which of the following is NOT a function of the
lymphatic system?
a. Return of fluid to the circulatory system
b. Return of dissolved materials to the
circulation
c. Transport of fats to the circulatory
system
d. Defense of the body
e. Transport of oxygen to the lungs
43. What 2 organs are considered to be part of the
lymphatic system?
a. The pancreas and the liver
b. The gall bladder and the kidneys
c. The spleen and the thymus
d. The heart and the lungs
e. The thalamus and the hypothalamus