01:146:328 Lecture Notes - Lecture 4: Cestoda, Pseudophyllidea, Praziquantel

• School: Rutgers University
• Department: Cell Biology and Neuroscience
• Course: 01:146:328
• Professor: A.Keating

Document Summary

Morphology (figure 12-1, 2: scolex: anterior end, like the head, nervous structures, chief neural ganglia, sensory endings - physical and chemical, attachment structures - 2 major types, neck. 1: contains stem cells: undifferentiated (cells) zone giving rise to the. Immature: the early parts of the strobila are the ones closest to the neck. Development: most require at least 2 host, oncosphere develops inside an egg, then it hatches in the external environment and is eaten by ih. It uses those hooks to enter the hemocoel (the body cavity): develops into the cysticercoid (metacestode). Cyst infillrates host tissue, common in liver. (echinodoccus multilocularis) c) In all cyclo spp (1) ih with metacestode ingested by dh (2) excysts (3) adult worm in dh. Taenia solium: the pork tapeworm: life cycle (13-5, the pig is the ih infected by ingesting eggs, the dh is the human when they ingest pork that has the cysticerci due to it being undercooked, egg morphology.