WGU D313 EXAM SCRIPT WITH VIEW AHEAD
TESTED QUESTIONS AND DETAILED
SOLUTIONS 2026.
⫸ Which description matches the name, structure, and function of the
white blood cell shown in the diagram? Answer: Basophil - multiple-
lobed nucleus to combat histamine production
⫸ How is a neutrophil described? Answer: Abundant, granular,
especially effective against bacteria
⫸ People with ABO blood type O ________. Answer: lack both
antigens A and B on their erythrocytes
⫸ Which blood cell is agranular? Answer: monocyte
⫸ Which statement about blood is true? Answer: As blood volume
decreases, blood pressure and blood flow also decrease
⫸ A patient has been experiencing severe, persistent allergy
symptoms that are reduced when she takes an antihistamine. Before
the treatment, this patient was likely to have had increased activity of
which leukocyte? Answer: Basophils
, ⫸ What removes aging and damaged erythrocytes from circulation?
monocytes Answer: macrophages
⫸ A person cuts their finger with a knife when slicing a tomato.
Answer these questions to describe the three stages of hemostasis that
will occur in a healthy person. Answer: In the first stage of
hemostasis, the muscles in the blood vessel wall do what?
vasoconstrict In the second stage of hemostasis, which cells aggregate
and form a plug? platelets In the third stage of hemostasis the blood
coagulates and forms a clot. The clotting is stimulated and regulated
by clotting factors. In addition to clotting enzymes, which substances
are needed to control blood clots? Calciu and Vitamin K.
⫸ What volume is described as the "volume of air that can be
forcefully expelled from the lungs after normal expiration"? Answer:
Expiratory reserve volume
⫸ What is the major function of the paranasal sinuses Answer: Warm
and humidify incoming air
⫸ Which statement is correct about the expiration process? Answer:
It is a passive process in which the diaphragm relaxes
⫸ Which statement is correct concerning gas exchange at the alveoli?
Answer: Blood vessels receive oxygen and give carbon dioxide to the
alveoli
TESTED QUESTIONS AND DETAILED
SOLUTIONS 2026.
⫸ Which description matches the name, structure, and function of the
white blood cell shown in the diagram? Answer: Basophil - multiple-
lobed nucleus to combat histamine production
⫸ How is a neutrophil described? Answer: Abundant, granular,
especially effective against bacteria
⫸ People with ABO blood type O ________. Answer: lack both
antigens A and B on their erythrocytes
⫸ Which blood cell is agranular? Answer: monocyte
⫸ Which statement about blood is true? Answer: As blood volume
decreases, blood pressure and blood flow also decrease
⫸ A patient has been experiencing severe, persistent allergy
symptoms that are reduced when she takes an antihistamine. Before
the treatment, this patient was likely to have had increased activity of
which leukocyte? Answer: Basophils
, ⫸ What removes aging and damaged erythrocytes from circulation?
monocytes Answer: macrophages
⫸ A person cuts their finger with a knife when slicing a tomato.
Answer these questions to describe the three stages of hemostasis that
will occur in a healthy person. Answer: In the first stage of
hemostasis, the muscles in the blood vessel wall do what?
vasoconstrict In the second stage of hemostasis, which cells aggregate
and form a plug? platelets In the third stage of hemostasis the blood
coagulates and forms a clot. The clotting is stimulated and regulated
by clotting factors. In addition to clotting enzymes, which substances
are needed to control blood clots? Calciu and Vitamin K.
⫸ What volume is described as the "volume of air that can be
forcefully expelled from the lungs after normal expiration"? Answer:
Expiratory reserve volume
⫸ What is the major function of the paranasal sinuses Answer: Warm
and humidify incoming air
⫸ Which statement is correct about the expiration process? Answer:
It is a passive process in which the diaphragm relaxes
⫸ Which statement is correct concerning gas exchange at the alveoli?
Answer: Blood vessels receive oxygen and give carbon dioxide to the
alveoli
