| 释义 |
postpyramid Anat.|pəʊstˈpɪrəmɪd|
[post- A. 2 b.]
The posterior pyramid (funiculus gracilis) of the medulla oblongata. Hence postpyˈramidal a.1, of or pertaining to the postpyramid; posterior to the pyramids.
1866–8Owen Anat. Vertebr. III. 83 In advance of the post-pyramids, still deeper columns of the myelon come into view. Ibid. I. 273 The post-pyramidal tracts diverge, expand, and blend anteriorly with the similarly bulging rectiform tracts, forming the side-walls of a triangular or rhomboedal cavity, called the ‘fourth ventricle’. Ibid. III. 83 They expand as they enter the macromyelon, and form the ‘post-pyramidal bodies’. 1890Billings Med. Dict., Post-pyramidal nucleus, clavate nucleus. 1895Syd. Soc. Lex., Post-pyramidal nucleus, term for the nucleus of the Funiculus gracilis. |