Is there a test to detect defects in the nervous system?

Q: Is there a special test to check whether the nervous system is working perfectly in the body, or a test that can check defects in nervous system? For example an echocardiogram is used to check the defects in the heart, in the same way, is there a way to check defects in the nervous system?

A:There is no single test that can tell about the structure and functioning of the nervous system. The nervous system is too large and sophisticated as compared to other organs. The best is to consult a Neurologist for the appropriate test that you may require.