Sentence Examples


  • The third or outermost chamber, the proctodaeum, is closed externally by the sphincter ani; the orifice is quite circular.
  • In such cases the blastopore may entirely close, and both mouth and anus develop as new ingrowths (stomodaeum and proctodaeum), whilst, according to the observations of N.
  • In some parasitic Hymenoptera there is only a single the proctodaeum respectively.
  • That portion of the gut which is formed by the hypoblast, whereas in Hexapod insects the similar caecal tubes are developed from the proctodaeum or in -pushed portion of the gut which is formed from epiblast.
  • Pro, The proctodaeum or portion of gut leading to anus and formed embryologically by an inversion of the epiblast at that orifice.

How would you define proctodaeum? Add your definition here.

comments powered by Disqus