Mastering A&P2 Chapter 20 Flashcards
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Questions and Answers

Which of the following correctly describes the pathway of lymph?

  • Lymphatic ducts to lymphatic vessels to lymphatic trunks
  • Lymphatic vessels to lymphatic capillaries to lymphatic ducts
  • Lymphatic trunks to lymphatic capillaries to lymphatic vessels
  • Lymphatic capillaries to lymphatic vessels to lymphatic trunks to lymphatic ducts (correct)

    • Lymph traveling from the left arm would enter the venous circulation via the _______.

    thoracic duct

    Which of the following is NOT a part of the lymphatic system?

  • Lymphatic vessels
  • Thymus
  • Erythrocytes (correct)
  • Lymph nodes

    • Lymph vessels do NOT transport ________.

    <p>erythrocytes</p> Signup and view all the answers

    When the lymphatic structures of a limb are blocked due to tumors, the result is ________.

    <p>severe localized edema distal to the blockage of that limb</p> Signup and view all the answers

    Select the correct statement about lymph transport.

    <p>Lymph transport depends on the movement of adjacent tissues, such as skeletal muscles.</p> Signup and view all the answers

    Lymphatic capillaries are present in ________.

    <p>digestive organs</p> Signup and view all the answers

    Which of the following is NOT a method that maintains lymph flow?

    <p>Capillary smooth muscle contraction</p> Signup and view all the answers

    Which of the following is NOT a function of the lymphatic system?

    <p>Transporting respiratory gases</p> Signup and view all the answers

    From the right leg, lymph moves in which order?

    <p>right lumbar trunk, thoracic duct, left subclavian vein</p> Signup and view all the answers

    Lymphatic ________ are formed from the union of the largest collecting lymphatic vessels.

    <p>trunks</p> Signup and view all the answers

    Fats absorbed from the small intestine are transported to the bloodstream via ________.

    <p>lacteals</p> Signup and view all the answers

    Which of the following would NOT be classified as a lymphoid organ?

    <p>Pancreas</p> Signup and view all the answers

    The lymphatic capillaries are ________.

    <p>more permeable than blood capillaries</p> Signup and view all the answers

    Select the correct statement about lymphocytes.

    <p>B cells produce plasma cells, which secrete antibodies into the blood.</p> Signup and view all the answers

    Select the correct statement about lymphoid tissue.

    <p>Lymphoid tissue is predominantly reticular connective tissue.</p> Signup and view all the answers

    Which of the following is considered a primary lymphoid organ?

    <p>Thymus</p> Signup and view all the answers

    Although B and T lymphocytes originate in the bone marrow, T cells mature in the ________.

    <p>thymus</p> Signup and view all the answers

    Small secondary lymphoid organs, which cluster along lymphatic vessels, are termed ________.

    <p>lymph nodes</p> Signup and view all the answers

    Lymph leaves a lymph node via ________.

    <p>efferent lymphatic vessels</p> Signup and view all the answers

    What is a bubo?

    <p>an infected lymph node</p> Signup and view all the answers

    Large clusters of lymph nodes are NOT found in the ________ region.

    <p>Popliteal</p> Signup and view all the answers

    Flow of lymph through a lymph node is slowed due to ________.

    <p>fewer efferent vessels draining it compared to many afferent vessels feeding it</p> Signup and view all the answers

    Antibodies that act against a particular foreign substance are released by ________.

    <p>plasma cells</p> Signup and view all the answers

    Functions of the spleen include all of those below EXCEPT ________.

    <p>Forming crypts that trap bacteria</p> Signup and view all the answers

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

    <p>Producing new erythrocytes in adults</p> Signup and view all the answers

    Which of the following statements is FALSE regarding the spleen?

    <p>Red pulp is where immune functions take place.</p> Signup and view all the answers

    Lymphoid tissue that appears as a swelling of the mucosa in the oral cavity is called a(n) ________.

    <p>tonsil</p> Signup and view all the answers

    Which of the following structures is NOT considered mucosa-associated lymphoid tissue (MALT)?

    <p>Thymus</p> Signup and view all the answers

    Peyer's patches are found in the distal portion of the ________.

    <p>small intestine</p> Signup and view all the answers

    Mucosa-associated lymphoid tissues include all of the following EXCEPT ________.

    <p>Islets of Langerhans</p> Signup and view all the answers

    The tonsils located at the base of the tongue are the ________.

    <p>lingual tonsils</p> Signup and view all the answers

    Tonsils have blind-ended structures called ________ that trap bacteria and particulate matter.

    <p>tonsillar crypts</p> Signup and view all the answers

    Which of the following statements regarding the thymus is FALSE?

    <p>It has follicles similar to those in the spleen.</p> Signup and view all the answers

    The thymus is most active during ________.

    <p>childhood</p> Signup and view all the answers

    The thymus is the only lymphoid organ that does NOT ________.

    <p>produce B cells</p> Signup and view all the answers

    Study Notes

    Lymphatic Pathway

    • Lymph moves from lymphatic capillaries to lymphatic vessels, then to lymphatic trunks, and finally to lymphatic ducts.
    • Lymph from the left arm enters venous circulation via the thoracic duct.

    Components of the Lymphatic System

    • Erythrocytes are not a part of the lymphatic system.
    • Lymph vessels do not transport erythrocytes or respiratory gases.

    Lymphatic Obstruction

    • Blockage of lymphatic structures in a limb due to tumors results in severe localized edema distally.

    Lymph Transport Mechanisms

    • Lymph transport relies on the movement of adjacent tissues, such as skeletal muscles.
    • Capillary smooth muscle contraction is NOT a method maintaining lymph flow.

    Lymphatic Capillaries and Organs

    • Lymphatic capillaries are more permeable than blood capillaries and are present in digestive organs.
    • Lymphoid organs include the thymus but exclude the pancreas and the spleen regarding specific functions.

    Lymphocyte Function

    • B cells, upon activation, produce plasma cells that secrete antibodies into the bloodstream.
    • T cells mature in the thymus after originating in the bone marrow.

    Lymph Nodes

    • Small secondary lymphoid organs along lymphatic vessels are known as lymph nodes; they filter lymph.
    • Lymph leaves a lymph node via efferent lymphatic vessels.
    • The flow of lymph through lymph nodes is slowed by having fewer efferent vessels compared to afferent vessels.
    • A bubo refers to an infected lymph node.

    Spleen Functions

    • The spleen does not produce new erythrocytes in adults or form crypts to trap bacteria.
    • Red pulp is primarily associated with blood filtration, not immune functions.

    Mucosa-Associated Lymphoid Tissue (MALT)

    • Peyer's patches are found in the distal small intestine.
    • Tonsils, including lingual tonsils, exhibit tonsillar crypts that trap bacteria.
    • Thymus is not classified as MALT.

    Thymus Characteristics

    • The thymus is inactive post-childhood and does not contain follicles similar to those in the spleen.

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    Description

    Test your knowledge on the lymphatic system with these flashcards focusing on key concepts from Chapter 20 of Anatomy & Physiology 2. Assess your understanding of lymph pathways, components, and functions to enhance your learning experience in A&P. Perfect for students preparing for exams or quizzes!

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