Human Physiology Exam 4
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1. The cardiovascular centers are located in which area B.) medulla oblongata
of the brain?
A.) cerebrum
B.) medulla oblongata
C.) mesencephalon (midbrain)
D.) pons
2. Which of the following best describes veins? B.) thin walled, large lu-
A.) thick walled, small lumens, low pressure, lack mens, low pressure, have
valves valves
B.) thin walled, large lumens, low pressure, have
valves
C.) thin walled, small lumens, high pressure, have
valves
D.) thick walled, large lumens, high pressure, lack
valves
3. In a blood pressure measurement of 110/70, the num- B.) diastolic pressure
ber 70 is the ________.
A.) systolic pressure
B.) diastolic pressure
C.) pulse pressure
D.) mean arterial pressure
4. Which of the following is not important in preventing D.) endocardium
backflow of blood?
A.) chordae tendineae
B.) papillary muscles
C.) AV valves
D.) endocardium
5.
, Human Physiology Exam 4
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A molecule of hemoglobin ________. A.) consists of four globin
A.) consists of four globin proteins, each bound to a proteins, each bound to a
molecule of heme molecule of heme
B.) can carry up to 120 molecules of oxygen
C.) contains four glycoprotein units studded with oxy-
gen
D.) is shaped like a biconcave disk packed almost en-
tirely with iron
6. Which of the following statements regarding Ca2+ D.) Parathyroid hormone
homeostasis is TRUE? directly stimulates Ca 2+
A.) Vitamin D decreases the renal tubular reabsorption reabsorption by the kid-
of Ca 2+. neys.
B.) Parathyroid hormone directly stimulates Ca 2+ ab-
sorption from the GI tract.
C.) When plasma Ca 2+ increases above normal, the
secretion of parathyroid hormone increases.
D.) Parathyroid hormone directly stimulates Ca 2+ re-
absorption by the kidneys.
E.) In the absence of parathyroid hormone, plasma
Ca 2+ levels would be abnormally low resulting in the
hyperpolarization of nerve and muscle membranes.
7. T and B lymphocytes ________. D.) are involved with spe-
A.) proliferate excessively in leukopenia cific immune function
B.) are polymorphonuclear
C.) are most active against parasitic worms
D.) are involved with specific immune function
8. All of the following substances are present in proximal C.) Glucose
tubular fluid in the kidney, but which one is NOT nor-
mally present in urine?
, Human Physiology Exam 4
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A.) HPO42-
B.) H +
C.) Glucose
D.) Ca 2+
E.) K +
9. The coronary arteries branch off of the ________. B.) ascending aorta
A.) aortic valve
B.) ascending aorta
C.) aortic arch
D.) thoracic aorta
10. Platelets participate in hemostasis by D.) aggregating to form a
A.) secreting nitric oxide and releasing chemicals that plug and releasing chem-
promote vasoconstriction. icals that promote vaso-
B.) aggregating to form a plug and manufacturing constriction.
fibrinogen.
C.) secreting prostacyclin, which prevents platelet ag-
gregation on blood vessel endothelium.
D.) aggregating to form a plug and releasing chemi-
cals that promote vasoconstriction.
E.) secreting tissue plasminogen activator (t-PA) when-
ever they come into contact with collagen.
11. Which type of T cell is most effective against viruses? D.) cytotoxic T cells
A.) regulatory T cells
B.) Th1
C.) Th2
D.) cytotoxic T cells
12. Which of the following would you expect to find in a 1.) B antigen
person with type B+ blood 4.) Rh antigen
1.) B antigen 5.) Anti-A antibodies
, Human Physiology Exam 4
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2.) A antigen
3.) Anti-Rh antibodies
4.) Rh antigen
5.) Anti-A antibodies
6.) Anti-B antibodies
13. Which of the following formed elements would you B.) Eosinophils
expect to find in greater abundance during parasitic
infections?
A.) Small lymphocytes
B.) Eosinophils
C.) Neutrophils
D.) Thrombocytes
14. Which of the following cells would be most active in C.) natural killer cell
early and nonspecific immune responses the first time
one is exposed to pathogen?
A.) T cell
B.) macrophage
C.) natural killer cell
D.) neutrophil
15. Which of the following describes a neutrophil? C.) abundant, granular,
A.) rare, agranular, releases antimicrobial defensins especially effective against
B.) rare, granular, contains multiple granules packed bacteria
with histamine
C.) abundant, granular, especially effective against
bacteria
D.) abundant, agranular, especially effective against
cancer cells
16. Which of the following cells is phagocytic? D.) macrophage
A.) NK cell
Study online at https://quizlet.com/_jnsn5d
1. The cardiovascular centers are located in which area B.) medulla oblongata
of the brain?
A.) cerebrum
B.) medulla oblongata
C.) mesencephalon (midbrain)
D.) pons
2. Which of the following best describes veins? B.) thin walled, large lu-
A.) thick walled, small lumens, low pressure, lack mens, low pressure, have
valves valves
B.) thin walled, large lumens, low pressure, have
valves
C.) thin walled, small lumens, high pressure, have
valves
D.) thick walled, large lumens, high pressure, lack
valves
3. In a blood pressure measurement of 110/70, the num- B.) diastolic pressure
ber 70 is the ________.
A.) systolic pressure
B.) diastolic pressure
C.) pulse pressure
D.) mean arterial pressure
4. Which of the following is not important in preventing D.) endocardium
backflow of blood?
A.) chordae tendineae
B.) papillary muscles
C.) AV valves
D.) endocardium
5.
, Human Physiology Exam 4
Study online at https://quizlet.com/_jnsn5d
A molecule of hemoglobin ________. A.) consists of four globin
A.) consists of four globin proteins, each bound to a proteins, each bound to a
molecule of heme molecule of heme
B.) can carry up to 120 molecules of oxygen
C.) contains four glycoprotein units studded with oxy-
gen
D.) is shaped like a biconcave disk packed almost en-
tirely with iron
6. Which of the following statements regarding Ca2+ D.) Parathyroid hormone
homeostasis is TRUE? directly stimulates Ca 2+
A.) Vitamin D decreases the renal tubular reabsorption reabsorption by the kid-
of Ca 2+. neys.
B.) Parathyroid hormone directly stimulates Ca 2+ ab-
sorption from the GI tract.
C.) When plasma Ca 2+ increases above normal, the
secretion of parathyroid hormone increases.
D.) Parathyroid hormone directly stimulates Ca 2+ re-
absorption by the kidneys.
E.) In the absence of parathyroid hormone, plasma
Ca 2+ levels would be abnormally low resulting in the
hyperpolarization of nerve and muscle membranes.
7. T and B lymphocytes ________. D.) are involved with spe-
A.) proliferate excessively in leukopenia cific immune function
B.) are polymorphonuclear
C.) are most active against parasitic worms
D.) are involved with specific immune function
8. All of the following substances are present in proximal C.) Glucose
tubular fluid in the kidney, but which one is NOT nor-
mally present in urine?
, Human Physiology Exam 4
Study online at https://quizlet.com/_jnsn5d
A.) HPO42-
B.) H +
C.) Glucose
D.) Ca 2+
E.) K +
9. The coronary arteries branch off of the ________. B.) ascending aorta
A.) aortic valve
B.) ascending aorta
C.) aortic arch
D.) thoracic aorta
10. Platelets participate in hemostasis by D.) aggregating to form a
A.) secreting nitric oxide and releasing chemicals that plug and releasing chem-
promote vasoconstriction. icals that promote vaso-
B.) aggregating to form a plug and manufacturing constriction.
fibrinogen.
C.) secreting prostacyclin, which prevents platelet ag-
gregation on blood vessel endothelium.
D.) aggregating to form a plug and releasing chemi-
cals that promote vasoconstriction.
E.) secreting tissue plasminogen activator (t-PA) when-
ever they come into contact with collagen.
11. Which type of T cell is most effective against viruses? D.) cytotoxic T cells
A.) regulatory T cells
B.) Th1
C.) Th2
D.) cytotoxic T cells
12. Which of the following would you expect to find in a 1.) B antigen
person with type B+ blood 4.) Rh antigen
1.) B antigen 5.) Anti-A antibodies
, Human Physiology Exam 4
Study online at https://quizlet.com/_jnsn5d
2.) A antigen
3.) Anti-Rh antibodies
4.) Rh antigen
5.) Anti-A antibodies
6.) Anti-B antibodies
13. Which of the following formed elements would you B.) Eosinophils
expect to find in greater abundance during parasitic
infections?
A.) Small lymphocytes
B.) Eosinophils
C.) Neutrophils
D.) Thrombocytes
14. Which of the following cells would be most active in C.) natural killer cell
early and nonspecific immune responses the first time
one is exposed to pathogen?
A.) T cell
B.) macrophage
C.) natural killer cell
D.) neutrophil
15. Which of the following describes a neutrophil? C.) abundant, granular,
A.) rare, agranular, releases antimicrobial defensins especially effective against
B.) rare, granular, contains multiple granules packed bacteria
with histamine
C.) abundant, granular, especially effective against
bacteria
D.) abundant, agranular, especially effective against
cancer cells
16. Which of the following cells is phagocytic? D.) macrophage
A.) NK cell
