Nature of Immune System Flashcards
Which of the following can be attributed to Pasteur?
a. Discovery of opsonins
b. Observation of Phagocytosis
c. First attenuated vaccines
d. Theory of humoral immunity
First attenuated vaccines
Which WBC is capable of further differentiation in tissues
a. Neutrophil
b. Eosinophil
c. Basophil
d. Monocyte
Monocyte
The cells that Metchnikoff first observed are associated with which phenomenon?
a. Innate immunity
b. Adaptive immunity
c. Humoral immunity
d. Specific immunity
Innate immunity
Where are all undifferentiated lymphocytes made?
a. Bone marrow
b. Spleen
c. Thymus
d. Lymph nodes
Bone marrow
Which of the following statement is true of NK cells?
a. They rely upon memory for antigen recognition
b. They have the same CD groups as B cells
c. They are found mainly in lymph nodes
d. They kill target cells without prior exposure to them.
They kill target cells without prior exposure to them.
Which cell is the most potent phagocytic cell in the tissue?
a. Neutrophil
b. Dendritic cell
c. Eosinophil
d. Basophil
Dendritic cell
The ability of an individual to resist infection by means of normally present body function is called.
a. Innate immunity
b. Humoral immunity
c. Adaptive immunity
d. Cross immunity
Innate immunity
A cell characterized by nucleus with two to five lobes, a diameter of 10 to 15 um, and a large number of neutral staining granules is identified as a(n)
a. Eosinophil
b. Monocyte
c. Basophil
d. Neutrophil
Neutrophil
Which of the following is a primary lymphoid organ?
a. Lymph node
b. Spleen
c. Thymus
d. MALT
Thymus
What type of cells would be found in a primary follicle?
a. Unstimulated B cells
d. Germinal centers
c. Plasma cells
d. Memory cells
Unstimulated B cells
Which of the following is a distinguishing feature of B cells?
a. Act as helper cells
b. Presence of surface antibody
c. Able to kill target cells without prior exposure
d. Active in phagocytosis
Presence of surface antibody
Where do lymphocytes mainly come in contact with antigens?
a. Secondary lymphoid organs
b. Boodstream
c. Bone marrow
d. Thymus
Secondary lymphoid organs
Which of the following is found on the T cell subset known as helpers?
a. CD19
b. CD4
c. CD8
d. CD56
CD4
Which of the following statements best characterizes adaptive immunity?
a. Relies on normally present body functions
b. Response is similar for exposure
c. Specificity for each individual pathogen
d. Involves only cellular immunity
Specificity for each individual pathogen
The main function of T cells in the immune response is to
a. Produce cytokines that regulate both innate and adaptive immunity
b. Produce antibodies
c. Participate actively in phagocytosis
d. Respond to target cells without prior exposure
Produce cytokines that regulate both innate and adaptive immunity
Which of the following is a part of humoral immunity?
a. Cells involved in phagocytosis
b. Neutralization of toxins by serum
c. Macrophages and mast cells in the tissue
d. T and B cells in lymph nodes
Neutralization of toxins by serum
Immunity can be defined as
a. The study of medicines used to treat disease
b. A specific population at risk for a disease
c. The condition of being resistant to disease
d. The study of the noncellular portion of the blood
The condition of being resistant to disease
A blood cell that has reddish staining granules and is able to kill large parasite describes
a. Basophil
b. Monocyte
c. Neutrophil
d. Eosinophil
Eosinophil
Which of the following statement best describes a lymph node?
a. It is considered a primary lymphoid organ
b. It removes old RBCs
c. It collects fluid from the tissues
d. It is where B cells mature
It collects fluid from the tissues
Antigenic groups identified by different sets of antibodies reacting in a similar manner to certain standard cell lines best describes
a. Cytokines
b. Cluster of differentiation (CD)
c. Neutrophilic granules
d. Opsonins
Cluster of differentiation (CD)
