Types of oesophagus

TYPES OF OESOPHAGUS

  • Rhabditiform.
  • Filariform.

Rhabditiform oesophagus

  • Club shaped anterior portion is connected by a narrow neck to pear shaped posterior bulb.
  • This type occurs in the 1st larval stage of nematode and adult form of non-parasitic generation [of adult worm].Eg. Rhabditida.

Filariform oesophagus

  • Oesophagus is club shaped without posterior bulb.
  • It occurs in the 2nd and 3rd larval stage of nematode and also in parasitic generation of Rhabditida.
Last modified: Monday, 16 April 2012, 5:47 AM