Myocardial Infarction,also Called a Heart Attack

question 4

Multiple Choice

Myocardial infarction,also called a heart attack,

• A)is the damage or death of cardiac muscle tissue.
• B)is unrelated to cigarette smoking.
• C)actually causes no permanent damage to the heart.
• D)is caused by excessive blood pressure in the heart.

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Definitions:

Kinetic Energy

The energy that a body possesses due to its motion, dependent on the mass of the body and the square of its velocity.

Allosteric Site

A site on an enzyme other than the active site, to which a specific substance binds, thereby changing the shape and activity of the enzyme. Compare with active site.

Receptor Site

specific regions on a cell's surface or within the cell where molecules such as hormones, drugs, or neurotransmitters can bind to elicit a response.

Coupling

In biology, the process of linking two molecules together, often used in reference to chemical reactions or genetic recombination.