| 单词 |
perikaryon |
| 释义 |
perikaryon Anat.|pɛrɪˈkærɪən|
Pl. -karya.
[f. peri- + Gr. κάρυον nut, kernel.]
The cell-body of a neurone; that part of a nerve cell which contains the nucleus.
1897M. Foster Text Bk. Physiol. (ed. 7) III. i. 928 It will be convenient to distinguish by a separate name between the processes whether axon or dendrite, and the part from which these processes start, namely the body of the cell surrounding the nucleus; the latter might be called the perikaryon. 1961New Scientist 12 Oct. 117/3 In the invertebrates the [nerve] fibre is not so long and does not usually end on a blood vessel; the perikaryon instead provides more or less all the available storage space. 1975Nature 25 Dec. 746/2 Brain tissue..after this treatment exhibits only weak nonspecific fluorescence with some bright yellow autofluorescent granules in large neuronal perikarya. 1977P. B. & J. S. Medawar Life Sci. xv. 122 The most obviously cell-like part of the neurone is called the cell-body or perikaryon, and this houses the nucleus. |
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