A variety of ocean phenomena- both explained and unexplained have intrigued people around the world. Some of these most famous ocean mysteries have been a subject of great debates and discussions. Learn about ten such mysteries of the oceans. A variety of ocean phenomena- both explained and unexplained have intrigued people around the world. Some of these most famous ocean mysteries have been a subject of great debates and discussions.
A nerve conduction study (NCS), also called a nerve conduction velocity (NCV) test--is a measurement of the speed of conduction of an electrical impulse through a nerve. NCS can determine nerve damage and destruction.
Test Overview. An electromyogram (EMG) measures the electrical activity of muscles when they're at rest and when they're being used. Nerve conduction studies measure how well and how fast the nerves can send electrical signals. Nerves control the muscles in the body with electrical signals called impulses.