Podcast
Questions and Answers
Where do lymphatic ducts connect to return lymph to the bloodstream?
Where do lymphatic ducts connect to return lymph to the bloodstream?
- Subclavian vein (correct)
- Carotid artery
- Aorta
- Pulmonary artery
Which vessels collect and filter lymph at the nodes?
Which vessels collect and filter lymph at the nodes?
- Arteries
- Veins
- Capillaries
- Lymphatic vessels (correct)
What do lymphatic vessels do with the lymph they collect?
What do lymphatic vessels do with the lymph they collect?
- Transport it to the liver
- Transport it away from tissues (correct)
- Transport it to the heart
- Transport it to the lungs
What do lymphatic vessels have in common with veins?
What do lymphatic vessels have in common with veins?
What is the function of lymphatic capillaries?
What is the function of lymphatic capillaries?
What is the purpose of returning lymph to the bloodstream?
What is the purpose of returning lymph to the bloodstream?
What is the role of the basement membrane in lymphatic capillaries?
What is the role of the basement membrane in lymphatic capillaries?
Which of the following is NOT a component of lymphatic capillaries?
Which of the following is NOT a component of lymphatic capillaries?
What is the main function of lymphatic capillaries?
What is the main function of lymphatic capillaries?
What is the purpose of mini-valves in lymphatic capillaries?
What is the purpose of mini-valves in lymphatic capillaries?
Which part of the lymphatic system is responsible for transport and cleaning?
Which part of the lymphatic system is responsible for transport and cleaning?
What do lymphatic capillaries do?
What do lymphatic capillaries do?
What do lymphatic capillaries have in the small intestine?
What do lymphatic capillaries have in the small intestine?
What do collecting vessels become as they combine?
What do collecting vessels become as they combine?
What are the two types of ducts in the lymphatic system?
What are the two types of ducts in the lymphatic system?
What do lymphatic vessels have that allow fluid in?
What do lymphatic vessels have that allow fluid in?
What is the largest duct in the lymphatic system?
What is the largest duct in the lymphatic system?
What do lymphatic vessels depend on for movement?
What do lymphatic vessels depend on for movement?
Which of the following aids in the movement of lymph in the lymphatic system?
Which of the following aids in the movement of lymph in the lymphatic system?
What is the lymphatic system responsible for moving back into the circulatory system?
What is the lymphatic system responsible for moving back into the circulatory system?
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Study Notes
Lymphatic System Overview
- The lymphatic system is responsible for moving proteins, lipids, and waste products back into the circulatory system.
Lymphatic Ducts
- Lymphatic ducts connect to return lymph to the bloodstream through the subclavian veins.
- There are two types of ducts in the lymphatic system: the thoracic duct and the right lymphatic duct.
- The thoracic duct is the largest duct in the lymphatic system.
Lymphatic Capillaries
- Lymphatic capillaries collect interstitial fluid and proteins that have leaked out of blood capillaries.
- The basement membrane in lymphatic capillaries is discontinuous, allowing for the passage of substances.
- Lymphatic capillaries have mini-valves that prevent backflow of lymph.
- Lymphatic capillaries in the small intestine are called lacteals and absorb fats and fat-soluble vitamins.
- Lymphatic capillaries do not have smooth muscle, so they depend on the movement of surrounding tissues for lymph flow.
Lymphatic Vessels
- Lymphatic vessels have one-way valves that allow fluid in but prevent backflow.
- Lymphatic vessels collect and filter lymph at lymph nodes.
- Lymphatic vessels return lymph to the bloodstream through lymphatic ducts.
- Lymphatic vessels have in common with veins that they both have one-way valves and thin walls.
Lymph Nodes
- Lymph nodes filter lymph and remove pathogens and debris.
Transport and Cleaning
- The lymphatic system is responsible for transport and cleaning of the body.
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