01:146:328 Study Guide - Midterm Guide: Echinococcosis, Taenia Solium, Alveolar Hydatid Disease

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

Document Summary

Egg ingested --> egg hatches in intestine --> onchosphere --> penetrates intestine --> circulatory system --> parenteral site --> develops into metacestode. Protoscolex attached to germinative layers where each one can develop into an adult worm in dh a. Secondary cyst that are attached to gem layer through pedicel. Hydrated sand- secondary cyst/ protoscolices breaks free and settle to. Cyst infiltrates host tissue liver: multilocularis a. a. In all species, ih ingested by dh i. ii. Dh - human ingest pork with cysticerci a. Inner envelope embryophore -outer most, thick and striated. Penetrates intestine and migrates to parenteral site and becomes a cysticercus a. b. If there is not to many then there if barely any symptoms. Space-occupying lesion --> pressure on tissue interferes with function, if decrease circulation can lead to necrosis i. i. i. i. Can lead to loss of vision or eye. Person is dh has poor hygiene, they can bring the eggs to the mouth.