Why does pain from a myocardial infarction radiate to the neck and down the arm?

Sensory. The sensory fibers from the neck and arm go through the same nerve connections as the sensory fibers from the heart/lungs and the brain may have difficulty distinguishing where the problem is actually coming from.

Related Questions

Why does pain from a myocardial infarction radiate to the neck and sometimes down the arm?

Several reasons. The sensory nerves that innervate the heart are not like the nerves in finger tips-the pain is "visceral" and cannot be localized like a pin prick. It's perceived as spreading out from its origin into adjacent structures. Moreover, the inner arm shares the same dermatome, ie, the nerves send signals to the same segment of the spinal cord and then to the brain which interprets it as the same. Read more...

What can cause a myocardial infarction at age 30?

Heart attack. Premature coronary artery disease of atherosclerotic type can cause mi in young people, smoking, cocaine, inflammatory heart disease, some hyperthrombotic diseases, while uncommon that young, it definitely happens. Read more...

Why is there ST segment elevation during a myocardial infarction?

Ecg. The ST segment elevation is caused by an electrical potential difference in that phase of the cardiac cycle between the dying cardiac muscle and normal parts of the heart and the vector direction of that potential difference as manifest on the ecg. Read more...

What drug can induce a myocardial infarction?

More than one. In general, when medications are prescribed appropriately, the risk of mi or other adverse effect is low compared with the expected benefit. However sometimes they do happen. Recently there has been a lot of attention on 2 common classes of medication and their risk for negative cardiac effects: decongestants (many "sinus" meds) & nsaids (such as ibuprofen, Naproxen and their name brand versions). Read more...

I need to know what's an inferior myocardial infarction?

A heart attack. It is a heart attack in the bottom part of the left ventricle. Read more...
Heart attack. Inferior myocardial infarction is a heart attack on the bottom of the heart. This portion of the heart is frequently served by the right coronary artery but occasionally by the circumflex coronary artery. When the artery closes, the bottom of the heart does not get any blood, and the muscle of the heart is injured. Read more...

Reason for st segment elevation in myocardial infarction?

Electrical. A heart attack damages muscles in the heart. The flow of the electrical current throughout the wall changes when having to go around the damaged muscle, resulting in certain ekg changes, since ekg's show the path of electrical current in the heart. There are different changes, de[ending on which part of the muscle is damaged. Read more...