Discussions By Condition: Heart conditions

Why does angina cause pain down the left arm?

Posted In: Heart conditions 0 Replies
  • Posted By: Anonymous
  • May 22, 2006
  • 09:02 PM

I understand that angina caused by exercise gives pain which radiates from the chest down the left arm, but why is this? Why should the pain be felt in the left arm? Is it due to tissue hypoxia? If so, why just the left arm?
Do the sensory nerves from the heart merge with ones from the left arm?

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