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Chapter 4: Cells of the Innate Immune System Quiz

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Chapter 4: Cells of the Innate Immune System Quiz

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Questions and Answers

What is the primary function of lymphocytes in the innate immune system?

To migrate into tissues and act as macrophages

To kill abnormal host cells that are infected or malignant (correct)

To phagocytose and degrade foreign cells and particles

To synthesize immunoglobulins and antibodies

Which type of leukocyte is characterized by the presence of granules in its cytoplasm?

Granulocytes (correct)

Lymphoid cells

Agranular leukocytes

Monocytic cells

What is the primary function of dendritic cells in the innate immune system?

To sample extracellular fluids by macropinocytosis (correct)

To phagocytose and degrade foreign cells and particles

To migrate into tissues and act as macrophages

To synthesize immunoglobulins and antibodies

What is the main difference between monocytes and macrophages?

Monocytes are found in the circulation, while macrophages reside in tissues Signup and view all the answers

Which type of lymphocyte is responsible for the production of antibodies?

B lymphocytes Signup and view all the answers

Why are dendritic cells not typically observed in peripheral blood smears?

Dendritic cells are only found in specific tissues, not in the peripheral blood Signup and view all the answers

What is the common origin of all types of leukocytes in the innate immune system?

They all arise from a common pluripotent stem cell in the bone marrow Signup and view all the answers

Which type of white blood cells have multilobed nuclei and cytoplasmic granules?

Neutrophils Signup and view all the answers

What percentage of total white blood cells do neutrophils typically constitute?

60% Signup and view all the answers

Which type of white blood cells have dark purplish black granules containing histamine?

Basophils Signup and view all the answers

What is the primary function of eosinophils?

Responding to parasitic infections Signup and view all the answers

Which white blood cells are effective at killing bacteria and increase significantly in acute infections?

Neutrophils Signup and view all the answers

How do basophils differ from eosinophils?

Basophils release histamine, eosinophils respond to parasitic infections. Signup and view all the answers

In what type of infection are eosinophils particularly important?

Parasitic infections Signup and view all the answers