trochal การใช้

• In mobilid ciliates, the trochal band is a permanent feature of the cell.
• Ciliature on the body is restricted to a posterior wreathe called the " trochal band, " made up of three rings of cilia girdling the aboral region of the cell.
• This trochal band is also found in sessilid peritrichs, where it is ciliated only during the swarmer ( telotroch ) phase of the cell's life, during which the organism can swim freely.