BIOL 252 EXAM 3 QUESTIONS AND ANSWERS | HUMAN ANATOMY & PHYSIOLOGY STUDY
GUIDE 2026/2027
You are a nurse and obtain the results of the complete blood count (CBC) from your patient
below. Which of the following organs may be functioning abnormally? Select all that apply:
RBCs: low
Hemoglobin: high
Hematocrit: slightly low
A. Kidney
B. Spleen
C. Bone - ANS ✔✔A. Kidney
B. Spleen
C. Bone
You are a nurse and obtain the results of the complete blood count (CBC) from your patient
below. What can you conclude about your patient
RBCs: low
Hemoglobin: high
Hematocrit: slightly low
A. They are healthy
B. They have hemolytic anemia
C. They have iron-deficiency anemia
D. They are anemic, but unsure why - ANS ✔✔D. They are anemic, but unsure why
Sickle-cell anemia will affect multiple steps in respiration. Choose the primary steps affected:
A. Sickled cells will alter the capillaries in the lung, making it difficult to
,increase the volume of the alveoli. If alveoli cannot expand, volume cannot be increased. If
volume cannot be increased, pressure cannot be decreased. If pressure cannot be decreased,
inspiration is decreased.
B. Red blood cells will be reduced in number due to clearance of sickled cells
by the spleen and liver.
C. Red blood cells that are sickled will block capillaries. If the blockage
occurs in the lungs, external respiration will be affected. If blockage occurs in the tissue, internal
respiration will be affected.
D. Red blood cells that are sickled will block capillaries. If blockage occurs in
the lungs, internal respiration will be affected. If the blockage occurs in the tissue, external
respiration will be affected. - ANS ✔✔B. Red blood cells will be reduced in number due to
clearance of sickled cells
by the spleen and liver.
C. Red blood cells that are sickled will block capillaries. If the blockage
occurs in the lungs, external respiration will be affected. If blockage occurs in the tissue, internal
respiration will be affected.
Which of the following statements are true?
A. Platelets are anuclear
B. Platelets are mitotic
C. Both of the above
D. Neither of the above - ANS ✔✔A. Platelets are anuclear
When a blood vessel is damaged, _______ is the process by which the flow of blood is slowed
and/or stopped.
A. Hemostasis
B. Coagulation
C. Platelet activation - ANS ✔✔A. Hemostasis
,The end result of both the intrinsic and extrinsic coagulation pathways is the formation of Xa.
True
False - ANS ✔✔True
You are a phlebotomist and are drawing a blood sample from a patient. The medical orders
state that blood should be drawn such that blood clots do not form. What should you ensure is
in your blood collecting tubes?
A. Nothing
B. Recombinant plasmin
C. Heparan sulfate - ANS ✔✔C. Heparan sulfate
If an oocyte from an individual with AB blood were to be fertilized by a sperm from an individual
with type B blood, what are the possible blood types that could be present in the offspring?
Select all that apply.
A. AB
B. A
C. B
D. O - ANS ✔✔A. AB
B. A
C. B
You are working in a blood bank and are blood typing donations received. You incubate a
sample with an anti-A antibody and observe agglutination. What can you conclude? Select all
that apply.
A. The patient is type A blood
B. The patient's red blood cells express the A antigen
C. The patient is type B blood
, D. The patient's red blood cells express the B antigen
E. The patient is type AB blood
F. The patient is type O blood - ANS ✔✔B. The patient's red blood cells express the A antigen
Coronary circulation supplies oxygenated blood to the:
A. Lungs
B. Heart
C. Liver
D. Brain - ANS ✔✔B. Heart
Which of the characteristics below differentiate skeletal muscle from cardiac muscle cells?
A. Excitability
B. Sarcoplasmic reticulum
C. Striations
D. Intercalated discs - ANS ✔✔D. Intercalated discs
The rapid influx of Ca2+ into the cytoplasm of pacemaker cells creates a positive membrane
potential inside the cell and is responsible for:
A. Minimum potential phase
B. Repolarization phase
C. Full depolarization phase
D. Plateaued depolarization phase - ANS ✔✔C. Full depolarization phase
There are many similarities between the sarcolemma of skeletal and cardiac muscle cells. Which
is FALSE?
A. Sarcolemma is the cell membrane of skeletal and cardiac muscle cells.
GUIDE 2026/2027
You are a nurse and obtain the results of the complete blood count (CBC) from your patient
below. Which of the following organs may be functioning abnormally? Select all that apply:
RBCs: low
Hemoglobin: high
Hematocrit: slightly low
A. Kidney
B. Spleen
C. Bone - ANS ✔✔A. Kidney
B. Spleen
C. Bone
You are a nurse and obtain the results of the complete blood count (CBC) from your patient
below. What can you conclude about your patient
RBCs: low
Hemoglobin: high
Hematocrit: slightly low
A. They are healthy
B. They have hemolytic anemia
C. They have iron-deficiency anemia
D. They are anemic, but unsure why - ANS ✔✔D. They are anemic, but unsure why
Sickle-cell anemia will affect multiple steps in respiration. Choose the primary steps affected:
A. Sickled cells will alter the capillaries in the lung, making it difficult to
,increase the volume of the alveoli. If alveoli cannot expand, volume cannot be increased. If
volume cannot be increased, pressure cannot be decreased. If pressure cannot be decreased,
inspiration is decreased.
B. Red blood cells will be reduced in number due to clearance of sickled cells
by the spleen and liver.
C. Red blood cells that are sickled will block capillaries. If the blockage
occurs in the lungs, external respiration will be affected. If blockage occurs in the tissue, internal
respiration will be affected.
D. Red blood cells that are sickled will block capillaries. If blockage occurs in
the lungs, internal respiration will be affected. If the blockage occurs in the tissue, external
respiration will be affected. - ANS ✔✔B. Red blood cells will be reduced in number due to
clearance of sickled cells
by the spleen and liver.
C. Red blood cells that are sickled will block capillaries. If the blockage
occurs in the lungs, external respiration will be affected. If blockage occurs in the tissue, internal
respiration will be affected.
Which of the following statements are true?
A. Platelets are anuclear
B. Platelets are mitotic
C. Both of the above
D. Neither of the above - ANS ✔✔A. Platelets are anuclear
When a blood vessel is damaged, _______ is the process by which the flow of blood is slowed
and/or stopped.
A. Hemostasis
B. Coagulation
C. Platelet activation - ANS ✔✔A. Hemostasis
,The end result of both the intrinsic and extrinsic coagulation pathways is the formation of Xa.
True
False - ANS ✔✔True
You are a phlebotomist and are drawing a blood sample from a patient. The medical orders
state that blood should be drawn such that blood clots do not form. What should you ensure is
in your blood collecting tubes?
A. Nothing
B. Recombinant plasmin
C. Heparan sulfate - ANS ✔✔C. Heparan sulfate
If an oocyte from an individual with AB blood were to be fertilized by a sperm from an individual
with type B blood, what are the possible blood types that could be present in the offspring?
Select all that apply.
A. AB
B. A
C. B
D. O - ANS ✔✔A. AB
B. A
C. B
You are working in a blood bank and are blood typing donations received. You incubate a
sample with an anti-A antibody and observe agglutination. What can you conclude? Select all
that apply.
A. The patient is type A blood
B. The patient's red blood cells express the A antigen
C. The patient is type B blood
, D. The patient's red blood cells express the B antigen
E. The patient is type AB blood
F. The patient is type O blood - ANS ✔✔B. The patient's red blood cells express the A antigen
Coronary circulation supplies oxygenated blood to the:
A. Lungs
B. Heart
C. Liver
D. Brain - ANS ✔✔B. Heart
Which of the characteristics below differentiate skeletal muscle from cardiac muscle cells?
A. Excitability
B. Sarcoplasmic reticulum
C. Striations
D. Intercalated discs - ANS ✔✔D. Intercalated discs
The rapid influx of Ca2+ into the cytoplasm of pacemaker cells creates a positive membrane
potential inside the cell and is responsible for:
A. Minimum potential phase
B. Repolarization phase
C. Full depolarization phase
D. Plateaued depolarization phase - ANS ✔✔C. Full depolarization phase
There are many similarities between the sarcolemma of skeletal and cardiac muscle cells. Which
is FALSE?
A. Sarcolemma is the cell membrane of skeletal and cardiac muscle cells.
