20. The Lymphatic System

Overview of Lymphoid Organs

20. The Lymphatic System

Overview of Lymphoid Organs

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Primary & Secondary Lymphoid Organs

Overview of Lymphoid Organs Example 1

Jason Amores Sumpter

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Spleen Anatomy and Physiology

Lymphatic System: Crash Course Anatomy & Physiology #44

Introduction to the Lymphatic System

Osmosis from Elsevier

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Textbook Question

Multiple Choice More than one choice may apply. Where exactly does an antigen bind to an antibody molecule? a. b. c. d.

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Textbook Question

Once almost a rite of childhood, tonsillectomy (surgical removal of the tonsils) is now rarely performed. Similarly, while ruptured spleens were once routinely removed, they are now conserved whenever possible. Why should these lymphoid organs be preserved when possible?

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Textbook Question

Identify the structures of the lymphatic system in the following diagram. a. ___ b. ___ c. ___ d. ___ e. ___ f. ___ g. ___ h. ___ i. ___ j. ___ k. ___ l. ___ m. ___ n. ___ o. ___ p. ___ q. ___

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Textbook Question

A friend tells you that she has tender, swollen 'glands' along the left side of the front of her neck. You notice that she has a bandage on her left cheek that is not fully hiding a large infected cut there. Exactly what are her swollen 'glands,' and how did they become swollen?

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Multiple Choice

The spleen's white pulp is composed primarily of __________.

The lymphoid organ(s) located in the throat that defend(s) against invading bacteria coming in through the mouth and nose is/are __________.

Areas of lymphocytes suspended by reticular fibers in the spleen are known as __________.

Collections of lymphoid tissue that guard mucosal surfaces (MALT) include all the following EXCEPT __________.

The lymphoid organ that functions primarily during youth and then begins to atrophy is the a. spleen, b. thymus, c. palatine tonsils, d. bone marrow.

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Textbook Question

Fill in the blanks: The lymphoid organ that filters the blood is the ______, and the lymphoid organ that filters the lymph is the______.

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Multiple Choice

Which of the following statements about the spleen is FALSE?

Which of the following statements about the development of lymphocytes is correct?

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Textbook Question

List the specific functions of each of the body's primary and secondary lymphoid tissues and organs.

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Textbook Question

Red blood cells that are damaged or defective are removed from the bloodstream by the (a) thymus, (b) lymph nodes, (c) spleen, (d) tonsils.

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Textbook Question

The structural framework of lymphoid organs is a. areolar connective tissue, b. hematopoietic tissue, c. reticular tissue, d. adipose tissue.

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Textbook Question

The interaction between the antigen-binding site of the antibody and the epitope of the antigen is:

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Multiple Choice

Aggregates of lymphoid nodules located in the wall of the ileum of the small intestine are __________.

A patient comes to you after experiencing multiple infections in a short period of time. Analysis reveals that she has a very low white blood cell count. Which lymphoid organ is likely not functioning correctly?

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Textbook Question

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

e. Clusters of MALT located around the oral and nasal cavities are known as Peyer's patches.

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Textbook Question

Multiple Choice More than one choice may apply. Developmentally, embryonic lymphatic vessels are most closely associated with the a. veins. b. arteries. c. nerves. d. thymus gland.

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Multiple Choice

Which structure, attached to the cecum, is in an ideal location to destroy bacteria before they breach the intestinal wall?

Stem cells responsible for lymphocytopoiesis are located in (a) the thymus and spleen, (b) the lymph nodes, (c) the red bone marrow, (d) all of these structures.

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Multiple Choice

The main role of the tonsils is to __________.

Compare the structure and functions of a lymph node to those of the spleen.

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Multiple Choice

What lymphatic structures trap bacteria in the posterior oral cavity?

Choose the true statement about the thymus.

Which lymphatic structure may also be a site of erythrocyte production in the fetus?

The red pulp areas of the spleen are sites of a. splenic sinusoids, macrophages, and red blood cells, b. clustered lymphocytes, c. connective tissue septa.

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Textbook Question

Collections of lymphoid tissue (MALT) that guard mucosal surfaces include all of the following except a. appendix follicles, b. the tonsils, c. Peyer's patches, d. the thymus.

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Multiple Choice

Which of the following is/are the major lymphoid organ(s) that "train(s)" T lymphocytes to become immunocompetent?

Which of the following is NOT a role of the spleen?

The germinal centers in lymph nodes are largely sites of a. macrophages, b. proliferating B lymphocytes, c. T lymphocytes, d. all of these.

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Multiple Choice

In addition to its lymphoid function, which organ holds a reservoir of platelets?

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20. The Lymphatic System

Overview of Lymphoid Organs

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