N 
NASAL SEPTUM:
The vertical (sagittal) midline partition separating the left and right nasal cavities.
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NASAL TURBINATES:
Curved plates of cartilage and bone, located on the lateral walls of the nasal cavities. Covered by mucous membrane and vascular tissue, they serve to warm and humidfy the air for respiration.
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NASOPHARYNX:
The portion of the pharynx located above the horizontal level of the soft palate.
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NAVICULAR:
A "boat shaped" bone of the hand and foot. Also called the "scaphoid". NOTE: In the hand, this bone is prone to develop aseptic necrosis after a fracture.
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FX Scaphoid (Carpal Navicular)
FX Scaphoid (Carpal Navicular)
FX Tarsal Navicular
NERVE ROOT:
The portion of a nerve adjacent to the CNS centers of the brain and spinal cord that they innervate.
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NEURAL FORAMEN:
The passage for a nerve. For the spine, the spinal nerves and vessels, pass through the intervertebral neural foramen, formed by the inferior notch of the pedicle above, and a superior notch of the pedicle below.
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NUCLEAR MEDICINE:
Radioactive materials with specific biological properties can be used to produce images, diagnose illness, and in some cases can be used to treat diseases.
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Bug Report
Portions © 1997, 2002 J.G. Smirniotopoulos, M.D. and others.