Podcast
Questions and Answers
Which of the following is NOT a component of the lymphatic system?
Which of the following is NOT a component of the lymphatic system?
How do lymphatic collectors differ from veins?
How do lymphatic collectors differ from veins?
Which type of nervous system is responsible for the innervation of lymphangions?
Which type of nervous system is responsible for the innervation of lymphangions?
What is the function of lymphangion?
What is the function of lymphangion?
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Which lymphatic trunk drains the abdominal organs?
Which lymphatic trunk drains the abdominal organs?
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Where does the right lymphatic duct deposit lymph?
Where does the right lymphatic duct deposit lymph?
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Which of the following is NOT an extrinsic factor that contributes to the movement of lymph?
Which of the following is NOT an extrinsic factor that contributes to the movement of lymph?
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What is the main difference between lymphatic collectors and veins?
What is the main difference between lymphatic collectors and veins?
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What is the frequency of contraction of the lymphatic vessels?
What is the frequency of contraction of the lymphatic vessels?
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Which layer of the lymphatic collectors is made up of collagen fibers?
Which layer of the lymphatic collectors is made up of collagen fibers?
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What is the average number of lymph nodes in the human body?
What is the average number of lymph nodes in the human body?
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Which type of lymphatic trunk drains the upper limbs?
Which type of lymphatic trunk drains the upper limbs?
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Which lymphatic duct deposits lymph into the left terminus?
Which lymphatic duct deposits lymph into the left terminus?
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Which of the following is NOT an extrinsic factor that contributes to the movement of lymph?
Which of the following is NOT an extrinsic factor that contributes to the movement of lymph?
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What is the function of lymph nodes?
What is the function of lymph nodes?
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Which of the following is NOT a component of the lymphatic system?
Which of the following is NOT a component of the lymphatic system?
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What is the main function of lymph nodes?
What is the main function of lymph nodes?
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What is the average number of lymph nodes in the human body?
What is the average number of lymph nodes in the human body?
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Which type of lymphatic trunk drains breast tissue, thoracic organs, and intercostal tissues?
Which type of lymphatic trunk drains breast tissue, thoracic organs, and intercostal tissues?
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What is the main function of lymph nodes?
What is the main function of lymph nodes?
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Which lymphatic duct deposits lymph into the junction of the right internal jugular vein and the right subclavian vein?
Which lymphatic duct deposits lymph into the junction of the right internal jugular vein and the right subclavian vein?
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What are the components of the lymphatic system?
What are the components of the lymphatic system?
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Study Notes
Lymphatic System Components
- The lymphatic system consists of lymphatic vessels, lymph nodes, lymphatic trunks, lymphatic ducts, and lymphoid organs.
Lymphatic Collectors vs. Veins
- Lymphatic collectors differ from veins in that they have thinner walls and more valves, which help to propel lymph forward.
- The main difference between lymphatic collectors and veins is the presence of valves in lymphatic collectors.
Lymphangions
- Lymphangions are the functional units of lymphatic vessels that are responsible for propelling lymph forward.
- The function of a lymphangion is to actively pump lymph through the contraction and relaxation of its smooth muscle layer.
- The frequency of contraction of lymphatic vessels is approximately 6-10 times per minute.
Innervation of Lymphangions
- The sympathetic nervous system is responsible for the innervation of lymphangions.
Lymphatic Trunks and Ducts
- The thoracic duct drains the abdominal organs and deposits lymph into the left subclavian vein.
- The right lymphatic duct deposits lymph into the junction of the right internal jugular vein and the right subclavian vein.
- The subclavian trunk drains the upper limbs, while the bronchomediastinal trunk drains breast tissue, thoracic organs, and intercostal tissues.
Lymph Nodes
- There are approximately 600-700 lymph nodes in the human body.
- The function of lymph nodes is to filter lymph and trap foreign substances, and to activate an immune response.
Extrinsic Factors of Lymph Movement
- Extrinsic factors that contribute to the movement of lymph include skeletal muscle contraction, respiratory movements, and arterial pulsation.
- Gravity is NOT an extrinsic factor that contributes to the movement of lymph.
Lymphatic Collector Layers
- The tunica adventitia layer of lymphatic collectors is made up of collagen fibers.
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Description
Test your knowledge of the anatomy and physiology of the lymphatic system components with this quiz. Explore topics such as lymph, lymphatic organs, lymphatic capillaries, lymphatic nodes, and more.
