| 释义 |
post-oral, a. Anat. and Zool.|-ˈɔərəl|
[f. post- B. 2 + oral.]
Situated behind the mouth: applied to (theoretical) segments of the head in arthropods, and to certain visceral arches in the embryo of vertebrates. Opp. to pre-oral.
1870Rolleston Anim. Life 106 Besides the prae-oral or so-called ‘supra-oesophageal’ ganglionic mass..there are twelve post-oral ganglia in the Crayfish. 1888Rolleston & Jackson Anim. Life 491 [The head in Arthropoda] consists of a prae-oral or pro-cephalic region, to which are fused a variable number of post-oral somites. 1895Syd. Soc. Lex., Post-oral arches, the five subcranial plates which lie below (on the caudal side of) the mouth in the embryo, going to form the lower jaw and throat. |