Quick Facts
Location: Neck.
Drainage: Left upper limb and left half of thorax.
Direction of Flow: Thoracic duct > junction of the left subclavian and internal jugular veins.
Related parts of the anatomy
Description
The subclavian trunk is formed by efferent lymphatic vessels from the axillary lymph nodes. The left subclavian trunk follows the axillary and subclavian veins, conveying lymph from the left upper limb and superficial tissue of the left side of the thorax and abdomen, down as far as the umbilicus. It drains into either the thoracic duct or directly into the left subclavian or internal jugular vein.
