A member asked:

What is under your collar bone on the left side?

A doctor has provided 1 answer
Dr. Ki-Hon Lin answered

Specializes in Orthopedic Surgery

Anatomy: Under your collar bone is the upper portion of the chest wall and within that, the upper portion of the lung. Additionally, several blood vessels and a large complex of nerves crosses this area.

Answered 4/19/2018

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