Chordates are animals possessing a notochord, a hollow dorsal nerve cord,
pharyngeal slits, an endostyle, and a post-anal tail for at least some period of
their life cycles. ..... Each filter feeds ...
In technical terms, the postanal tail is an extension of the notochord and nerve
cord that extend beyond the anus. The word postanal means behind or after the ...
All chordates have a post-anal tail. A post-anal tail is an extension of the body
that runs past the anal opening. In some species, like humans, this feature is only
Animals in the phylum Chordata share four key features: a notochord, a dorsal
hollow nerve cord, pharyngeal slits, and a post-anal tail.
Looking for online definition of postanal in the Medical Dictionary? postanal ...
Melanophores that form a postanal ventral (pav) series on the tail were most ...
Oct 3, 2005 ... Postanal. Home » Postanal. postanal. (Science: anatomy) Situated behind, or
posterior to, the anus. Origin: Pref. Post- _ anal. Retrieved from ...
Dec 14, 2010 ... Definition ... Pharyngeal Slits; Notochord; Hollow Dorsal Nerve Cord; Muscular,
Post-anal tail ... Muscular, Post-anal tail Function & Evolution ...
Lastly, all chordates have a post-anal tail, or extension of the notochord and
nerve cord past the anus. This feature is also lost in the adult stages of many ...
Animal Sciences Biology A Dictionary of Biology Further reading ... The tail,
notochord, and nerve cord degenerate, the pharynx enlarges, and the other
Animal Sciences A Dictionary of ZoologyA Dictionary of BiologyA Dictionary of
Earth ... and Vertebrata) in that the adult form has no notochord, nerve cord, or tail