Chapter 21: The Lymphatic System

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Questions and Answers

Which cell type detaches from the target cell after the target cell dies by apoptosis?

  • B lymphocyte
  • Plasma cell
  • Cytotoxic T lymphocyte (correct)
  • Macrophage

Where do antigen-activated immunocompetent lymphocytes encounter their antigen?

  • In the mucous membranes
  • In the bloodstream
  • In the thymus
  • In the lymph nodes, spleen, and other lymphoid tissues (correct)

Where do B cells develop immunocompetence?

  • Lymph nodes
  • Spleen
  • Red bone marrow (correct)
  • Thymus gland

What is the role of antibodies in the immune response?

<p>To mark the bacteria for destruction (C)</p> Signup and view all the answers

What is the primary function of the lymph nodes?

<p>To filter and remove pathogens from the lymph (C)</p> Signup and view all the answers

What is the main function of the white pulp in the spleen?

<p>To activate immune responses (C)</p> Signup and view all the answers

What is the function of memory lymphocytes?

<p>To wait until the body encounters the antigen again (B)</p> Signup and view all the answers

Where do immature lymphocytes develop into T lymphocytes?

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

What is the site of lymphocyte origin?

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

What is the term for the process by which cytotoxic T lymphocyte kills the target cell?

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

What is the function of the aggregated lymphoid nodules in the intestine?

<p>To fight invading bacteria and generate memory lymphocytes (A)</p> Signup and view all the answers

What is the primary location of the mucosa-associated lymphoid tissue (MALT)?

<p>In the mucous membranes of the digestive, urinary, respiratory, and reproductive tracts (B)</p> Signup and view all the answers

What is the primary function of lymphatic vessels in the human body?

<p>To collect and circulate lymph to the great veins in the neck (C)</p> Signup and view all the answers

What is the name of the specialized lymphatic capillaries located in the villi of the small intestine?

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

What is the main function of lymph nodes?

<p>To cleanse the lymph of pathogens (D)</p> Signup and view all the answers

Which of the following is NOT a function of lymph capillaries?

<p>Production of antibodies (A)</p> Signup and view all the answers

What is the name of the largest lymph duct in the body?

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

What is the name of the cells that attack foreign cells directly?

<p>Cytotoxic T lymphocytes (C)</p> Signup and view all the answers

What is the primary function of B lymphocytes?

<p>To produce antibodies (C)</p> Signup and view all the answers

What is the term for the flow of lymph through the lymphatic vessels?

<p>One-way flow (C)</p> Signup and view all the answers

What is the name of the region where the lumbar and intestinal trunks converge?

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

What is the name of the veins into which the right lymphatic duct and thoracic duct empty?

<p>Internal jugular and subclavian veins (B)</p> Signup and view all the answers

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