Anatomy of the Immune System: Lymphoid Organs and Blood Cells
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Questions and Answers

Which of the following is NOT a type of granulocyte?

  • Lymphocyte (correct)
  • Neutrophil
  • Basophil
  • Eosinophil

What is the function of eosinophils?

  • Formation of pus
  • Role in ending allergic reactions (correct)
  • Phagocytosis of bacteria
  • Formation of blood cells

Which leukocyte type has pink granules in its cytoplasm?

  • Monocytes
  • Lymphocytes
  • Basophils
  • Neutrophils (correct)

Where does hematopoiesis occur predominantly?

<p>Red bone marrow (C)</p> Signup and view all the answers

Which type of leukocytes are phagocytic?

<p>Monocytes (A)</p> Signup and view all the answers

What is the function of basophils?

<p>Role in allergic reactions (C)</p> Signup and view all the answers

Where does haematopoiesis take place in humans?

<p>Red marrow (D)</p> Signup and view all the answers

Which component of bone marrow produces approximately 500 billion blood cells per day?

<p>Hematopoietic component (B)</p> Signup and view all the answers

What separates the red pulp from the white pulp in the spleen?

<p>Diffuse marginal zone (C)</p> Signup and view all the answers

Where are Cutaneous and Mucosal Lymphoid Organs located?

<p>Under the epithelia of skin, GIT, and respiratory tracts (C)</p> Signup and view all the answers

Which organ serves as a big lymph node but is not supplied by lymphatic vessels?

<p>Spleen (A)</p> Signup and view all the answers

Where do immune cells sample the antigens of microbes that might enter the body?

<p>Lymph nodes (D)</p> Signup and view all the answers

What are the primary lymphoid organs of the immune system?

<p>Bone marrow and thymus (C)</p> Signup and view all the answers

Which organ is considered the primary lymphoid organ for B cell development?

<p>Bone marrow (B)</p> Signup and view all the answers

At what age does the generation of T cells from the thymus drop to 2% of newborn levels?

<p>65 (D)</p> Signup and view all the answers

Which organ collects antigens from the blood stream?

<p>Spleen (B)</p> Signup and view all the answers

What are the innate immune cells mentioned in the text?

<p>Macrophages, neutrophils, dendritic cells (D)</p> Signup and view all the answers

Where do the immune cells spend most of their time according to the text?

<p>In lymphoid organs (C)</p> Signup and view all the answers

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