更多mesenteron例句

1. I failed to find any trace of an anterior part of the mesenteron adjoining the stomodum.
2. In the Tracheata the mesenteron is always considerable, and the proctodum is always short.
3. I must, in fact, admit that I have hitherto failed to work out satisfactorily the history of the mesenteron and its appendages.
4. From the mesenteron there might be pouch-like or tubular outgrowths.
5. The main branches of the latter enter the mesenteron just behind the fifth pair of cephalic appendages.