Demyelinating disease. A demyelinating disease is any disease of the nervous system in which the myelin sheath of neurons is damaged. This damage impairs the conduction of signals in the affected nerves. In turn, the reduction in conduction ability causes deficiency in sensation, movement, cognition, or other functions depending on which nerves are involved.
For other uses, see Reamer (disambiguation). A reamer is a type of rotary cutting tool used in metalworking. Precision reamers are designed to enlarge the size of a previously formed hole by a small amount but with a high degree of accuracy to leave smooth sides.
RECESS - That portion of the body which is. reduced in diameter below the cutting. edges, pilot or guide diameters. FLUTES - The grooves in the body of the. reamer to provide cutting edges, to permit. the removal of chips, and to allow cutting. fluid to reach the cutting edges. CUTTING EDGE- The edge formed by the.