Saturday, December 8, 2007

Nervous System

Nervous System
  • the nerve center of tapeworms is located in the scolex
  • the complexity is depended on the complexity of the scolex - bothriate cestodes are the simplest, with only a lateral pair of cerebral ganglia united by a single ring and a transverse commissure
  • worms with bothridia or acetabula are much more complex and hence have a more complex system of commissures and connectives in the scolex, with five pairs of longitudinal nerves running posteriorly from the cerebral ganglia through the stroblia

No comments: