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 Social Effects of Alcoholism. Alcohol is the term used for ethanol, the substance suitable for humans to drink, versus methanol, which is toxic. Fermented grain, fruit juice and honey have been used to make alcohol (ethyl alcohol or ethanol) for about 10,000 years.