Tim Taylor is a senior writer at Innerbody Research focusing on human anatomy and physiology. Tim earned both his Bachelor of Science degree in Biology and his Master's degree in Teaching from the University of Pittsburgh.

Last updated: May 5th, 2025

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The hilum of a lymph node is a depression on the concave side of the node. This is where lymph leaves the node through the efferent (one-way) lymphatic vessels.

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