Podcast
Questions and Answers
The right lymphatic duct receives lymph from all of the following body regions, except the:
The right lymphatic duct receives lymph from all of the following body regions, except the:
- Upper limb
- Lower limb (correct)
- Head and neck
- Thoracic region
Which lymphatic system organ involutes and becomes nonfunctional as aging occurs?
Which lymphatic system organ involutes and becomes nonfunctional as aging occurs?
Thymus
Which of the following is not a function of the lymph node?
Which of the following is not a function of the lymph node?
- Housing lymphocytes
- Producing red blood cells (correct)
- Removing foreign substances
- Filtering lymph
Pharyngeal tonsils are also called?
Pharyngeal tonsils are also called?
Lymphatic nodules are encapsulated lymphatic organs.
Lymphatic nodules are encapsulated lymphatic organs.
Which lymphatic ducts receive lymph from the body regions in the figure?
Which lymphatic ducts receive lymph from the body regions in the figure?
Correctly label the following lymphatics of the thoracic cavity.
Correctly label the following lymphatics of the thoracic cavity.
Correctly label the following anatomical features of the lymph node.
Correctly label the following anatomical features of the lymph node.
Label the structures of the spleen.
Label the structures of the spleen.
Match the lymphatic trunk with the major body region that it drains.
Match the lymphatic trunk with the major body region that it drains.
Match the lymphatic organ with its description.
Match the lymphatic organ with its description.
Lymph vessels reabsorb what fluid from the tissues and return it to the venous circulation?
Lymph vessels reabsorb what fluid from the tissues and return it to the venous circulation?
The two collecting ducts that drain the lymphatic trunks are the?
The two collecting ducts that drain the lymphatic trunks are the?
The formation of lymph increases as a result of?
The formation of lymph increases as a result of?
The primary functions of lymph include?
The primary functions of lymph include?
The region of a lymph node through which blood vessels and nerves pass is called the?
The region of a lymph node through which blood vessels and nerves pass is called the?
The lymph nodes of the axillary region receive lymph mainly from the?
The lymph nodes of the axillary region receive lymph mainly from the?
Which of the following is not part of a lymph node?
Which of the following is not part of a lymph node?
Cells in a lymph node that engulf and destroy damaged cells, foreign substances, and cellular debris are?
Cells in a lymph node that engulf and destroy damaged cells, foreign substances, and cellular debris are?
Henry has a cut on his thigh that becomes infected. The lymph nodes in his __________ enlarge.
Henry has a cut on his thigh that becomes infected. The lymph nodes in his __________ enlarge.
The tissues of the spleen include?
The tissues of the spleen include?
Lymphatic capillaries are found in all of the following tissues or areas except?
Lymphatic capillaries are found in all of the following tissues or areas except?
Lymphatic capillaries are unique in that they depend on _________ to prevent the collapse of the lymphatic capillaries as pressure exerted by the interstitial fluid increases.
Lymphatic capillaries are unique in that they depend on _________ to prevent the collapse of the lymphatic capillaries as pressure exerted by the interstitial fluid increases.
T-lymphocytes are named according to the __________ gland where they become immunologically mature.
T-lymphocytes are named according to the __________ gland where they become immunologically mature.
The thymus continues to grow until a person reaches __________, when it reaches a maximum weight of 30 to 50 grams.
The thymus continues to grow until a person reaches __________, when it reaches a maximum weight of 30 to 50 grams.
Other than red bone marrow, the spleen contains the largest single store of?
Other than red bone marrow, the spleen contains the largest single store of?
Besides filtering blood for foreign materials and phagocytosis of old, defective erythrocytes, the spleen is also involved in what other major function?
Besides filtering blood for foreign materials and phagocytosis of old, defective erythrocytes, the spleen is also involved in what other major function?
Peyer patches are large accumulations of MALT located only in the?
Peyer patches are large accumulations of MALT located only in the?
Put the steps in the lymphatic pathway in the correct order.
Put the steps in the lymphatic pathway in the correct order.
Label the tonsils in the figure:
Label the tonsils in the figure:
Correctly label the anatomical features of lymphatic capillaries.
Correctly label the anatomical features of lymphatic capillaries.
Study Notes
Lymphatic System Overview
- The right lymphatic duct does not receive lymph from the lower limb.
- The thymus involutes and becomes nonfunctional with aging.
- Lymph nodes do not produce red blood cells; their main functions include filtering lymph and housing immune cells.
Tonsils and Lymphatic Nodules
- Pharyngeal tonsils are also known as adenoids.
- Lymphatic nodules are not encapsulated lymphatic organs.
Lymphatic Pathway and Function
- Lymphatic vessels reabsorb interstitial fluid, returning it to the venous circulation.
- The two collecting ducts are the thoracic duct and right lymphatic duct.
- Hydrostatic pressure in tissue fluid increases lymph formation, aiding in fluid balance.
- Primary functions of lymph include returning proteins to the bloodstream and transporting foreign particles to lymph nodes.
Anatomy Related to Lymphatic System
- The hilum is the region of a lymph node through which blood vessels and nerves pass.
- Axillary lymph nodes primarily receive lymph from the upper limb and mammary gland.
- Lymphatic capillaries are absent in epithelial tissues but found throughout other body regions.
Cellular Components and Their Actions
- Macrophages in lymph nodes engulf and destroy damaged cells and foreign substances.
- T-lymphocytes mature in the thymus and are named accordingly.
Spleen Functions and Structure
- The spleen consists of red and white pulp and serves as a reservoir for platelets and erythrocytes.
- The spleen filters blood, phagocytoses old erythrocytes, and maintains a significant store of platelets.
- Other than red bone marrow, the spleen contains the largest single store of platelets.
Peyer Patches and MALT
- Peyer patches are large accumulations of MALT located in the small intestine.
Lymphatic Capillary Functionality
- Lymphatic capillaries rely on anchoring filaments to prevent collapse under high interstitial fluid pressure.
Sequential Pathway of Lymph
- The flow of lymph follows this pathway:
- Lymphatic capillary
- Afferent lymphatic vessel
- Lymph node
- Efferent lymphatic vessel
- Lymphatic trunk
- Collecting duct
- Subclavian vein
Growth and Maturation
- The thymus grows until puberty, reaching a maximum weight of 30 to 50 grams.
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Description
Test your knowledge on the lymphatic system with this set of flashcards covering key concepts. Explore functions of lymph nodes, age-related changes in the thymus, and more. Perfect for AP biology students wanting to revise crucial lymphatic topics.
