Week 4 Midterm Exam Questions and Answers, NR 507 Week 4 Midterm
exam 2025 UPDATE/PRACTICE QUESTIONS AND CORRECT VERIFIED AN-
SWERS (complete solutions) ASSURED SUCCESS/GRADED A+!!!
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1. 1 The coronary ostia are located in the: (Points : 2) d. Aorta
a. Left ventricle
b. Aortic valve
c. Coronary sinus
d. Aorta
2. 2 Where in the respiratory tract do the majority of c. Bronchus
foreign objects aspirated by children finally
lodge? (Points : 2)
a. Trachea
b. Left lung
c. Bronchus
d. Bronchioles
3. 3 Which type of antibody is involved in type I hyper- b. IgE
sensitivity reaction? (Points : 2)
a. IgA
b. IgE
c. IgG
d. IgM
4. 4 Hypersensitivity is best defined as a(an): (Points : 2) c. Altered immunologic re-
a. Disturbance in the immunologic tolerance of self- sponse to an antigen that
antigens results in disease
b. Immunologic reaction of one person to the tissue
of another person
c. Altered immunologic response to an antigen that
results in disease
, NR 507 Week 4 Midterm 58/60 = 96.7%, NR 507 midterm week 4, NR 507
Week 4 Midterm Exam Questions and Answers, NR 507 Week 4 Midterm
exam 2025 UPDATE/PRACTICE QUESTIONS AND CORRECT VERIFIED AN-
SWERS (complete solutions) ASSURED SUCCESS/GRADED A+!!!
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d. Undetectable immune response in the presence of
antigens
5. 5 What is the final stage of the infectious process? d. Spread (1. Colonization
(Points : 2) 2. Invasion 3. Multiply 4.
a. Colonization Spread)
b. Invasion
c. Multiplication
d. Spread (1. Colonization 2. Invasion 3. Multiply 4.
Spread)
6. 6 The function of the foramen ovale in a fetus allows a. Righttoleft blood shunt-
what to occur? (Points : 2) ing
a. Righttoleft blood shunting
b. Lefttoright blood shunting
c. Blood flow from the umbilical cord
d. Blood flow to the lungs
7. 7 It has been determined that a tumor is in stage 2. c. Cancer is locally inva-
What is the meaning of this finding? (Points : sive.
2)
a. Cancer is confined to the organ of origin.
b. Cancer has spread to regional structures.
c. Cancer is locally invasive.
d. Cancer has spread to distant sites
8. 9 Which statement is true concerning the IgM? (Points a. IgM is the first antibody
: 2) produced during the ini-
a. IgM is the first antibody produced during the initial tial response to an anti-
response to an antigen. gen.
, NR 507 Week 4 Midterm 58/60 = 96.7%, NR 507 midterm week 4, NR 507
Week 4 Midterm Exam Questions and Answers, NR 507 Week 4 Midterm
exam 2025 UPDATE/PRACTICE QUESTIONS AND CORRECT VERIFIED AN-
SWERS (complete solutions) ASSURED SUCCESS/GRADED A+!!!
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b. IgM mediates many common allergic responses.
c. IgM is the most abundant class of immunoglobu-
lins.
d. IgM is capable of crossing the human placenta.
9. 10 Apoptosis is a(an): (Points : 2) a. Normal mechanism for
a. Normal mechanism for cells to selfdestruct when cells to selfdestruct when
growth is excessive growth is excessive
b. Antigrowth signal activated by the tumorsuppres-
sor gene Rb
c. Mutation of cell growth stimulated by the TP53
gene
d. Transformation of cells from dysplasia to anaplasia
10. 11 Which statement concerning benign tumors is d. The cells are welldiffer-
true? (Points : 2) entiated.
a. The resulting pain is severe.
b. Benign tumors are not encapsulated.
c. Benign tumors are fast growing.
d. The cells are welldifferentiated.
11. Which complex (wave) represents the sum of all ven- b. QRS
tricular muscle cell depolarizations? (Points
: 2)
a. PRS
b. QRS
c. QT interval
d. P
12. d. Treponema pallidum
, NR 507 Week 4 Midterm 58/60 = 96.7%, NR 507 midterm week 4, NR 507
Week 4 Midterm Exam Questions and Answers, NR 507 Week 4 Midterm
exam 2025 UPDATE/PRACTICE QUESTIONS AND CORRECT VERIFIED AN-
SWERS (complete solutions) ASSURED SUCCESS/GRADED A+!!!
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Which organism is a common sexually transmitted
bacterial infection? (Points : 2)
a. Staphylococcus aureus
b. Clostridium perfringens
c. Helicobacter pylori
d. Treponema pallidum
13. Which organ is stimulated during the alarm phase of b. Hypothalamus
the general adaptation syndrome (GAS)?
(Points : 2)
a. Adrenal cortex
b. Hypothalamus
c. Anterior pituitary
d. Limbic system
14. What is the role of caretaker genes? (Points : 2) a. Maintenance of ge-
a. Maintenance of genomic integrity nomic integrity
b. Proliferation of cancer cells
c. Secretion of growth factors
d. Restoration of normal tissue structure
15. Where are antibodies produced? (Points : 2) c. Plasma cells
a. Helper T lymphocytes
b. Thymus gland
c. Plasma cells
d. Bone marrow
16. The lung is innervated by the parasympathetic ner- a. Vagus
vous system via which nerve? (Points : 2)
a. Vagus