Why is there chest pain present with a myocardial infarction?

Chemical. During infarction ischemia leads to production of Adenosine which mediated chest pain. The pain fibers are not specific so some people feel in the chest others in the arm or neck.
CP. Myocardial infarction occurs as a result of blockage of arterial blood flow to the heart muscle resulting in the death of the affected area. Heart muscle when it is deprived of oxygen, produces certain merabolites responsible for pain.

Related Questions

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...