NR 507 midterm week 4, NR 507 Week 4 Midterm
Exam Questions and Answers, NR 507 Week 4 Midterm
exam 2026 UPDATE/PRACTICE QUESTIONS AND
CORRECT VERIFIED ANSWERS (complete solutions)
ASSURED SUCCESS/GRADED A+!!!
1 The coronary ostia are located in the: (Points : 2)
a. Left ventricle
b. Aortic valve
c. Coronary sinus
d. Aorta - ✔✔ANSWER ✔✔-d. Aorta
2 Where in the respiratory tract do the majority of foreign
objects aspirated by children finally
,lodge? (Points : 2)
a. Trachea
b. Left lung
c. Bronchus
d. Bronchioles - ✔✔ANSWER ✔✔-c. Bronchus
3 Which type of antibody is involved in type I
hypersensitivity reaction? (Points : 2)
a. IgA
b. IgE
c. IgG
d. IgM - ✔✔ANSWER ✔✔-b. IgE
4 Hypersensitivity is best defined as a(an): (Points : 2)
a. Disturbance in the immunologic tolerance of
selfantigens
b. Immunologic reaction of one person to the tissue of
another person
c. Altered immunologic response to an antigen that results
in disease
,d. Undetectable immune response in the presence of
antigens - ✔✔ANSWER ✔✔-c. Altered immunologic
response to an antigen that results in disease
5 What is the final stage of the infectious process? (Points :
2)
a. Colonization
b. Invasion
c. Multiplication
d. Spread (1. Colonization 2. Invasion 3. Multiply 4. Spread)
- ✔✔ANSWER ✔✔-d. Spread (1. Colonization 2. Invasion 3.
Multiply 4. Spread)
6 The function of the foramen ovale in a fetus allows what
to occur? (Points : 2)
a. Righttoleft blood shunting
b. Lefttoright blood shunting
c. Blood flow from the umbilical cord
d. Blood flow to the lungs - ✔✔ANSWER ✔✔-a. Righttoleft
blood shunting
, 7 It has been determined that a tumor is in stage 2. What
is the meaning of this finding? (Points :
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 - ✔✔ANSWER ✔✔-c.
Cancer is locally invasive.
9 Which statement is true concerning the IgM? (Points : 2)
a. IgM is the first antibody produced during the initial
response to an antigen.
b. IgM mediates many common allergic responses.
c. IgM is the most abundant class of immunoglobulins.
d. IgM is capable of crossing the human placenta. -
✔✔ANSWER ✔✔-a. IgM is the first antibody produced
during the initial response to an antigen.
10 Apoptosis is a(an): (Points : 2)
Exam Questions and Answers, NR 507 Week 4 Midterm
exam 2026 UPDATE/PRACTICE QUESTIONS AND
CORRECT VERIFIED ANSWERS (complete solutions)
ASSURED SUCCESS/GRADED A+!!!
1 The coronary ostia are located in the: (Points : 2)
a. Left ventricle
b. Aortic valve
c. Coronary sinus
d. Aorta - ✔✔ANSWER ✔✔-d. Aorta
2 Where in the respiratory tract do the majority of foreign
objects aspirated by children finally
,lodge? (Points : 2)
a. Trachea
b. Left lung
c. Bronchus
d. Bronchioles - ✔✔ANSWER ✔✔-c. Bronchus
3 Which type of antibody is involved in type I
hypersensitivity reaction? (Points : 2)
a. IgA
b. IgE
c. IgG
d. IgM - ✔✔ANSWER ✔✔-b. IgE
4 Hypersensitivity is best defined as a(an): (Points : 2)
a. Disturbance in the immunologic tolerance of
selfantigens
b. Immunologic reaction of one person to the tissue of
another person
c. Altered immunologic response to an antigen that results
in disease
,d. Undetectable immune response in the presence of
antigens - ✔✔ANSWER ✔✔-c. Altered immunologic
response to an antigen that results in disease
5 What is the final stage of the infectious process? (Points :
2)
a. Colonization
b. Invasion
c. Multiplication
d. Spread (1. Colonization 2. Invasion 3. Multiply 4. Spread)
- ✔✔ANSWER ✔✔-d. Spread (1. Colonization 2. Invasion 3.
Multiply 4. Spread)
6 The function of the foramen ovale in a fetus allows what
to occur? (Points : 2)
a. Righttoleft blood shunting
b. Lefttoright blood shunting
c. Blood flow from the umbilical cord
d. Blood flow to the lungs - ✔✔ANSWER ✔✔-a. Righttoleft
blood shunting
, 7 It has been determined that a tumor is in stage 2. What
is the meaning of this finding? (Points :
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 - ✔✔ANSWER ✔✔-c.
Cancer is locally invasive.
9 Which statement is true concerning the IgM? (Points : 2)
a. IgM is the first antibody produced during the initial
response to an antigen.
b. IgM mediates many common allergic responses.
c. IgM is the most abundant class of immunoglobulins.
d. IgM is capable of crossing the human placenta. -
✔✔ANSWER ✔✔-a. IgM is the first antibody produced
during the initial response to an antigen.
10 Apoptosis is a(an): (Points : 2)
