Chapter 21: The Lymphatic System

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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?

To mark the bacteria for destruction Signup and view all the answers

What is the primary function of the lymph nodes?

To filter and remove pathogens from the lymph Signup and view all the answers

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

To activate immune responses Signup and view all the answers

What is the function of memory lymphocytes?

To wait until the body encounters the antigen again Signup and view all the answers

Where do immature lymphocytes develop into T lymphocytes?

In the thymus Signup and view all the answers

What is the site of lymphocyte origin?

Red bone marrow Signup and view all the answers

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

Apoptosis Signup and view all the answers

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

To fight invading bacteria and generate memory lymphocytes Signup and view all the answers

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

In the mucous membranes of the digestive, urinary, respiratory, and reproductive tracts Signup and view all the answers

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

To collect and circulate lymph to the great veins in the neck Signup and view all the answers

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

Lacteals Signup and view all the answers

What is the main function of lymph nodes?

To cleanse the lymph of pathogens Signup and view all the answers

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

Production of antibodies Signup and view all the answers

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

Thoracic duct Signup and view all the answers

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

Cytotoxic T lymphocytes Signup and view all the answers

What is the primary function of B lymphocytes?

To produce antibodies Signup and view all the answers

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

One-way flow Signup and view all the answers

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

Cisterna chyli Signup and view all the answers

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

Internal jugular and subclavian veins Signup and view all the answers