Klose Training Lymphedema 101 Practice Test

Which of the following IS NOT a lymphatic trunk of the upper body?

Internal jugular trunks Subclavian trunks Lumbar trunks Broncho-mediastinal trunk

Correct Answer:

Lumbar trunks

Explanation:

The main idea here is which regions different lymphatic trunks drain. Trunks named for their regions carry lymph away from specific areas. Trunks that drain the head and neck, the upper limbs, and the thorax are part of the upper body drainage: for example, the jugular trunks drain the head and neck, the subclavian trunks drain the upper limbs, and the bronchomediastinal trunks drain the thoracic cavity. Lumbar trunks, on the other hand, carry lymph from the lower body—mainly the legs and pelvis—so they are not considered upper-body trunks. They contribute to the lymphatic drainage pathway that leads toward the cisterna chyli and then up the thoracic duct. That’s why lumbar trunks are not upper-body lymphatic trunks.

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