MRI vs. MRA. An MRA, or magnetic resonance angiogram, is a type of MRI scan that uses MRI's magnetic fields and radio waves to produce pictures of blood vessels inside the body, allowing doctors to locate problems that may cause reduced blood flow.
Best Answer: Ethyl alcohol, at the concentrations used in most antibacterial preparations, kills bacteria by disrupting membranes and by denaturing proteins. Ethylalcohol is miscible in water (that is, completely soluble). But ethyl alcohol can also dissolve in the membranes of cells.
The term rubbing alcohol has become a general non-specific term for either isopropyl alcohol or ethyl alcohol (ethanol) rubbing-alcohol products. Common rubbing alcohol is unsafe for human consumption, as isopropyl alcohol is a different chemical than the ethyl alcohol in alcoholic beverages. The lethal dose of isopropyl alcohol by mouth in adult humans is about 8 ounces (250 ml).