1
UTA A&P II Practice exam ch 18-21 Questions
with Correct Answers | Updated (100%
Correct Answers)
1) Which of these descriptions best matches the term B
lymphocytes?
A) produce antibodies in response to antigens
B) kill bacteria using hydrogen peroxide
C) adhere to collagen beneath endothelium
D) often elevated in allergic individuals
E) coordinate immune response Answer: A) produce antibodies in
response to antigens
2) Which of the following is a function of the blood?
A) transport of gases
B) transport of nutrients and wastes
C) transport of body heat
D) defense against toxins and pathogens
E) all of the above Answer: E) all of the above
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,2
3) _______controls release of glucocorticoids; _____ stimulates
testosterone secretion in the testes; ______ causes the kidneys to
retain sodium.
A) CRH, luteinizing hormone, aldosterone.
B) ACTH, FSH, ADH.
C) ACTH, luteinizing hormone, aldosterone.
D) ACTH, luteinizing hormone, ADH.
E) CRH, FSH, ADH. Answer: C) ACTH, luteinizing hormone,
aldosterone.
4) Hemolytic disease of the newborn may result if
A) the mother is Rh positive and the father is Rh negative.
B) both the father and the mother are Rh positive.
C) an Rh-positive mother carries an Rh-negative fetus.
D) an Rh-negative mother carries an Rh-positive fetus.
E) both the father and the mother are Rh negative Answer: D) an
Rh-negative mother carries an Rh-positive fetus.
5) Acetylcholine slows the heart because it
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, 3
A) opens potassium ion channels in SA node cells.
B) decreases the threshold.
C) opens sodium-calcium ion channels in SA node cells.
D) causes the pacemaker potential to depolarize more quickly.
E) A and C only Answer: A) opens potassium ion channels in SA
node cells.
6) The chief differences between plasma and interstitial fluid
involves the
A) concentration of electrolytes.
B) concentration of proteins.
C) concentration of nitrogen wastes.
D) concentration of glucose.
E) concentration of water. Answer: B) concentration of proteins.
7) Blood returning to the heart from the systemic circuit first enters
the
A) right atrium.
B) conus arteriosus.
© 2025 All rights reserved
UTA A&P II Practice exam ch 18-21 Questions
with Correct Answers | Updated (100%
Correct Answers)
1) Which of these descriptions best matches the term B
lymphocytes?
A) produce antibodies in response to antigens
B) kill bacteria using hydrogen peroxide
C) adhere to collagen beneath endothelium
D) often elevated in allergic individuals
E) coordinate immune response Answer: A) produce antibodies in
response to antigens
2) Which of the following is a function of the blood?
A) transport of gases
B) transport of nutrients and wastes
C) transport of body heat
D) defense against toxins and pathogens
E) all of the above Answer: E) all of the above
© 2025 All rights reserved
,2
3) _______controls release of glucocorticoids; _____ stimulates
testosterone secretion in the testes; ______ causes the kidneys to
retain sodium.
A) CRH, luteinizing hormone, aldosterone.
B) ACTH, FSH, ADH.
C) ACTH, luteinizing hormone, aldosterone.
D) ACTH, luteinizing hormone, ADH.
E) CRH, FSH, ADH. Answer: C) ACTH, luteinizing hormone,
aldosterone.
4) Hemolytic disease of the newborn may result if
A) the mother is Rh positive and the father is Rh negative.
B) both the father and the mother are Rh positive.
C) an Rh-positive mother carries an Rh-negative fetus.
D) an Rh-negative mother carries an Rh-positive fetus.
E) both the father and the mother are Rh negative Answer: D) an
Rh-negative mother carries an Rh-positive fetus.
5) Acetylcholine slows the heart because it
© 2025 All rights reserved
, 3
A) opens potassium ion channels in SA node cells.
B) decreases the threshold.
C) opens sodium-calcium ion channels in SA node cells.
D) causes the pacemaker potential to depolarize more quickly.
E) A and C only Answer: A) opens potassium ion channels in SA
node cells.
6) The chief differences between plasma and interstitial fluid
involves the
A) concentration of electrolytes.
B) concentration of proteins.
C) concentration of nitrogen wastes.
D) concentration of glucose.
E) concentration of water. Answer: B) concentration of proteins.
7) Blood returning to the heart from the systemic circuit first enters
the
A) right atrium.
B) conus arteriosus.
© 2025 All rights reserved
