5 Questions
Which of the following is a characteristic of lymph collecting vessels?
They have valves and appear similar to lymph capillaries
What is the role of valves in lymph collecting vessels?
To determine the direction of lymph flow
What is the function of smooth muscle cells in the walls of lymph ducts?
To contribute to the movement of lymph towards the heart
What causes the movement of lymph in lymph vessels?
Compression by surrounding tissues
What gives a beaded appearance to the lymph ducts?
Attachment of valves to the wall of the duct
Study Notes
Characteristics of Lymph Collecting Vessels
- Valves are present in lymph collecting vessels, which prevent backflow and ensure unidirectional flow of lymph.
Structure and Function of Lymph Ducts
- Smooth muscle cells in the walls of lymph ducts contract and relax in a rhythmic manner, helping to propel lymph forward.
Lymph Movement and Flow
- The movement of lymph in lymph vessels is caused by the contraction and relaxation of smooth muscle cells, as well as the contractions of surrounding skeletal muscles and breathing movements.
Lymph Duct Structure
- The presence of lymphoid follicles or aggregates of lymphoid tissue gives a beaded appearance to the lymph ducts.
Test your knowledge on the lymphatic system's collecting vessels and ducts. Learn about their structure, function, and how they contribute to the flow of lymph.
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