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 difference between methyl alcohol and ethyl alcohol is that methyl alcohol is wood alcohol, which is poisonous if it's ingested. Ethyl alcohol is grain alcohol. Although it also is dangerous in large amounts, it is the alcohol in alcoholic beverages. Continue Reading.