Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Secernentea
Introduction
Secernentea are a class of nematodes characterised by numerous caudal papillae and an excretory system possessing lateral canals. They have no circulatory or respiratory system.
Systematics
Subclasses and orders of Secernentea are:
Subclass Rhabditia
Subclass Spiruria
- Ascaridida – sometimes placed in Rhabditia
- Camallanida – sometimes included in Spirurida
- Drilonematida – sometimes included in Spirurida
- Spirurida
Subclass Diplogasteria
Subclass Tylenchia
Order incertae sedis