nucleus
The definitions used in this glossary of terminology either have been provided by the authors of the articles, or have been extracted wholly or in part, or paraphrased from the following sources: The American Medical Association Encyclopedia of Medicine, Charles B. Clayman, MD, Medical Editor, Random House, New York, 1989; Biotechnology from A to Z, 2d Edition, William Bains, Oxford University Press, New York, New York, 2002; A Dictionary of Genetics, 6th Edition, Robert C. King and William D. Stansfield, Oxford University Press, New York, New York, 2002; Dorland's Illustrated Medical Dictionary, 29th and 30th Editions, W. B. Saunders Company, Philadelphia, 2000, 2003; Genes VII, Benjamin Lewin, Oxford University Press, New York, New York, 2000; The Gale Encyclopedia of Genetic Disorders, Volumes I and II, Stacey L. Blachford, Ed., Thomson Learning, New York, New York, 2002; The Merriam-Webster Dictionary, Merriam-Webster, Inc., Springfield, Massachusetts, 1997; Molecular Biology of the Cell, 3rd Edition, Bruce Alberts, et al., Garland Publishing, 1994; The Random House Dictionary of the English Language, Unabridged Edition, 1966; Webster's Ninth New Collegiate Dictionary, 1991.
DEFINITION:
- nucleus
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1. The central core of an object or body.
2. A cell nucleus: a spheroid body within a cell, consisting of a number of characteristic organelles visible with the optical microscope, a thin nuclear membrane, a nucleolus or nucleoli, irregular granules of chromatin and linin, and a diffuse nucleoplasm.
3. A group of nerve cells ordinarily located within the central nervous system and bearing a direct relationship to the fibers of a particular nerve.
4. In organic chemistry, the combination of atoms forming the central element or basic framework of the molecule of a specific compound or class of compounds.
nucleus caudatus - Also caudate nucleus . An elongated, arched gray mass closely related to the lateral ventricle throughout its entire extent and consisting of a head, body, and tail. The caudate nucleus and putamen form a functional unit (the neostriatum) of the corpus striatum.
nucleus lentiformis - Also lentiform nucleus . The part of the corpus striatum somewhat resembling a biconvex lens, divided into an external, larger, lateral part, the putamen, and an internal, smaller, lighter colored medial part (globus pallidus), which is in turn subdivided into a smaller, medial, and a larger, lateral part by the medial medullary lamina.
Used in 1 Article abstract
Used in 1 Article abstract