Deck 11: Lymphoid Immune System

Question 1

Which of the following relates to the innate immune system?

A) it is slower than the adaptive immune system
B) it has immunologic memory
C) it exhibits specificity
D) it depends on Toll-like receptors
E) it has diversity

Answer 1

D

Question 2

Clonal expansion is dependent on which of the following cells?

A) effector cells
B) plasma cells
C) memory cells
D) virgin cells
E) naïve cells

Answer 2

C

Question 3

Which of the following is a primary (central) lymphoid organ?

A) thymus
B) lymph node
C) spleen
D) pharyngeal tonsil
E) palatine tonsil

Answer 3

A

Question 4

A child 6 years of age sees his pediatrician for repeated infections and developing blood in his diarrhea. The physician orders a complete blood count, and the results show very low platelet count and a low lymphocyte levels. Because the little boy also has eczema, the pediatrician suspects Wiskott-Aldrich syndrome. Children with this disease

A) have high T cell count and low B cell count
B) high B cell count and low T cell count
C) high T cell count and high B cell count
D) low T cell count and low B cell count
E) high erythrocyte count

Question 5

Thymic corpuscles (Hassall corpuscles) are composed of

A) type I reticular cells
B) type III reticular cells
C) type IV reticular cells
D) type V reticular cells
E) type VI reticular cells

Question 6

Graves' disease is an autoimmune disorder in which the person forms antibodies against his or her

A) thyroid-stimulating hormone (TSH)
B) thyroxine
C) thyroid gland
D) parathyroid gland
E) TSH receptors

Question 7

Which of the following cells possesses CD8 molecules?

A) T_H0
B) T_H1
C) T_H2
D) T reg
E) CTL

Question 8

The innate immune system relies on

A) natural killer cells
B) T helper cells
C) T killer cells
D) B memory cells
E) B effector cells

Question 9

This photomicrograph represents the

A) cortex of a lymph node
B) medulla of a lymph node
C) cortex of the thymus
D) medulla of the thymus
E) white pulp of the spleen

Question 10

The marginal zone belongs to which of the following structures?

A) lymph node
B) lymphoid nodule
C) spleen
D) thymus
E) pharyngeal tonsil

Question 11

The region inside the circle is the

A) cortex of a lymph node
B) medulla of a lymph node
C) cortex of the thymus
D) medulla of the thymus
E) white pulp of the spleen

Question 12

A patient is producing an antibody isotype that is composed of a dimer held together by J protein and is secreted into his saliva. Which of the following isotypes is being produced by this patient?

A) IgA
B) IgD
C) IgE
D) IgG
E) IgM

Question 13

The adaptive immune system relies on

A) natural killer cells
B) T helper cells
C) neutrophils
D) macrophages
E) complement

Question 14

The membrane attack system is the body's innate defense system against microbial attack. Which of the following components of the complement system plays a key role in this defense?

A) C2
B) C3
C) C4
D) Factor B
E) Factor D