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Chapter 4: Cells of the Innate Immune System

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Chapter 4: Cells of the Innate Immune System

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Questions and Answers

Which type of granular leukocyte is characterized by pinkish/purple cytoplasmic granules and 2-5 nuclear lobes?

Eosinophils

Monocytes

Neutrophils

Basophils (correct)

What is the relative percentage of Neutrophils in total WBCs in patients with active infectious processes?

50%

30%

80%

60% (correct)

Which granular leukocyte is essential for responses to parasitic infections and allergic reactions?

Neutrophils

Lymphocytes

Basophils (correct)

Monocytes

What do Eosinophils contain that make them important for responding to parasitic infections?

Reddish granules Signup and view all the answers

Which type of granular leukocyte is primarily implicated in allergic reactions?

Eosinophils Signup and view all the answers

Which of the following statements about lymphoid cells is correct?

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

What is the primary function of monocytic cells?

Phagocytosis of cellular debris and foreign particles. Signup and view all the answers

Which of the following is true about dendritic cells?

They are found mainly at potential sites of microbial entry, such as the skin, lungs, and gastrointestinal tract. Signup and view all the answers

Which of the following statements about monocytes/macrophages is correct?

They spend 1-2 days in circulation as monocytes before migrating into tissues as macrophages for several months. Signup and view all the answers

Which of the following is used to classify leukocytes (white blood cells)?

The presence or absence of granules in the cytoplasm. Signup and view all the answers

What is the primary function of NK lymphocytes?

Killing abnormal host cells, such as those infected or malignant. Signup and view all the answers