Glossary of terms used on this site
There are 324 entries in this glossary.N
| Term | Definition |
|---|---|
| Nerve |
A cordlike structure composed of a collection of nerve fibers that conveys impulses between a part of the central nervous system and some other region of the body. |
| Neurologic |
Pertaining to the brain or nerves. |
| Neurological disorders |
Those disorders that affect the brain, spinal cord, nerves or muscles. |
| Neurologist |
A medical specialist with advanced training in the diagnosis and treatment of diseases of the brain, spinal cord, nerves and muscles. |
| Neurotransmitter |
A chemical released from a nerve cell that transmits an impulse to another nerve, cell, or organ. |
| Nitrate |
A form of nitric acid that causes dilation (opening up) of the blood vessels to the heart. Nitroglycerin is a form of nitrate. |
| Nitric oxide |
A chemical in the body that stimulates production of cGMP, which is necessary for erectile function. |
| Nitroglycerin |
A medication that is usually taken sublingually (under the tongue) for the relief of angina. It may also be applied to the chest in a paste form for the prevention of angina. |
| Nocturnal |
Occurring or active at night. |
| Nocturnal penile tumescence (NPT) study |
A specialized study that evaluates the frequency and the quality of nocturnal erections. |
| Nocturnal penile tumescence and rigidity |
A test used to monitor erections that occur naturally during sleep. This test can help determine if a man's erectile problems are due to physical or psychological causes. |
| Non-insulin dependent diabetes mellitus |
Diabetes in which the body does not respond adequately to insulin. |
| Noninvasive |
Not requiring any incision or insertion of an instrument or substance into the body. |
| Nonsteroidal anti-inflammatory drugs (NS |
Medications used to treat inflammation of the body's tissues. |