Heart attack

Heart attack - part of the ossification developed in the body as a result of termination or violation of local blood circulation. Causes of heart attack can be thrombosis (see), embolism (see) or long spasm of the arteries supplying this site. A heart attack occurs only if the artery is not enough anastomoses (see) with neighbouring arteries. The shape of a heart attack depends on the branching of blood vessels in the body.
In the kidneys, spleen and lung infarction has the form of a cone, a converted basis to the surface of the body; in the heart, intestines shape of a heart attack incorrect.
The size of the infarct depend on the calibre of the struck vessel. There are white (anemia) and red (hemorrhagic) heart attacks. Anemic heart attacks whitish-gray observed in the kidneys and spleen. Hemorrhagic blackish-red heart attacks occur in the lungs, where infarction zone occurs hemorrhage.

white heart attacks spleen
Fig. 1. White heart attacks spleen.

Fig. 2. Red heart attacks easy.

The outcome of a heart attack depends on the location, size, conditions of education. Under favorable for around a heart attack develops inflammation, dead tissue dissolve, replaced by granulation tissue with subsequent scarring. When a heart attack resulting from vessel closure septic embolus, in the zone of necrosis occurs purulent fusion. In this regard, in place of a heart attack may form an abscess, and suppuration can spread to the surrounding tissue. A heart attack can nanaitsy and secondary infections; it often happens in the lung. The most frequent myocardial infarction (see).