Why angina pain radiate to the left arm not right one, although the heart lay in the middle of the chest?

Answer 1

To be sure, check your symptoms on WebMD.com and/or consult with your physician.

Answer 2

Explanation to this is still not completely worked out.The explanation i remember from med school is that the spinal neuron responsible for conducting pain impulses from spinal cord to brain receives stimulus from both shoulder muscles and heart due to their embryonic origin so brain cannot deferentiate the source of the pain.As far as left shoulder is concerned thats not true.Pain may be reffered to right soulder dependin on the part of heart affected.As generally left ventrical is affected which tends to have a more left position in the chest, people feel it in their left shoulder.It may be manifested without pain with just gastric discomfort and other cardiac symptoms if typically right atrium is in the picture.

Answer 3

t is called referred pain. You have a problem on one part of your body and you develop pain elsewhere. In the heart's case, it is actually located in most people on the left side of chest unless you have "situs inversus" where it would be pointing to the right side of chest. The aorta (major blood vessel arising from heart) divides into subclavian arteries and carotid arteries which supply head and arms. Nerve connections run alongside arteries therefore if you develop angina pectoris in heart, your arteries will also develop pain. Referred pain from angina can also be present in right arm(brachial artery) and/or neck(carotids). There are other examples of referred pain such as gall bladder pain - left shoulder pain.

If you would like to know more, please search: "referred pain syndrome" or "referred pain".

Answer 4

because 3/4th part of the heart is situated on the left side.