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Multiple Choice
Which of the following lymphatic trunks is unpaired?
A
bronchomediastinal trunk
B
jugular trunk
C
lumbar trunk
D
intestinal trunk
Verified step by step guidance
1
Understand the structure of the lymphatic system: The lymphatic system is composed of a network of vessels, nodes, and organs that help in the circulation of lymph fluid and the removal of waste and toxins from the body.
Identify the lymphatic trunks: Lymphatic trunks are large lymph vessels that drain lymph from different regions of the body. The main lymphatic trunks include the bronchomediastinal, jugular, lumbar, and intestinal trunks.
Differentiate between paired and unpaired trunks: Paired trunks are those that exist on both sides of the body, while unpaired trunks are singular and do not have a counterpart on the opposite side.
Examine the options: The bronchomediastinal, jugular, and lumbar trunks are typically paired, meaning they have a left and right counterpart. The intestinal trunk is unpaired, as it is a single trunk that drains lymph from the intestines.
Conclude with the correct answer: Based on the anatomical structure, the intestinal trunk is the unpaired lymphatic trunk among the options provided.