Glossary

The act of neurulation. The closure of the neural tube during embryogenesis or the emulation of same.

The stage of fetal development when the neural tube begins its transformation into central nervous system. The process begins with thickening of the endoderm to form the neural plate. The plate then folds or rolls on itself to form the neural tube. The neural tube is destine to eventually form the central nervous system, ultimately differentiating into the brain and spinal cord.

The National Emergency X-Radiography Utilization Study.  This study lays out criteria to determine probability for a fracture of the cervical spine that can be used to establish need to diagnostic radiology studies.

Neurofibromatosis

Neurofibromatosis Type 1

Neurofibromatosis Type 2

Nongerminomatous germ cell tumor – one of two types of germ cell tumors. this category of germ cell tumor includes all germ cell tumor types other than pure germinoma germ cell tumors (embryonal carcinoma, endodermal sinus tumor, choriocarcinoma, teratoma)..

Referring to a nidus (a breeding place or site of origin, especially a focus of infection or disease).

A breeding place or site of origin, especially a focus of infection or disease.

Nuclear magnetic  resonance – This refers to specific frequency that atomic nuclei emit after absorbing energy from a magnetic field.  This property is used to analyze materials to identify the atomic and/or molecular components based on the frequencies emitted from a serial after it is subjected to a strong magnetic field.