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Nasogastric Tube (NG Tube) 
A tube that passes through the patient's nose and throat and ends in the patient's stomach. This tube allows for direct "tube feeding" to maintain the nutritional status of the patient or removal of stomach acids.

Neglect 
Paying little or no attention to a part of the body. 

Neologism 
Nonsense or made-up word used when speaking. The person often does not realize that the word makes no sense. 

Neurologist 
A physician who specializes in the nervous system and its disorders.

Neuropsychologist 
A psychologist who specializes in evaluating (by tests) brain/behavior relationships, planning training programs to help the survivor of brain injury return to normal functioning and recommending alternative cognitive and behavioral strategies to minimize the effects of brain injury. Often works closely with schools and employers as well as with family members of the injured person.

Non-ambulatory 
Not able to walk. 

Nystagmus 
nvoluntary horizontal, vertical, or rotary movement of the eyeballs.