BIOL 3900 Lecture Notes - Lecture 7: Cymothoa Exigua, Helicobacter Pylori, Isopoda
Document Summary
Cymothoa exigua: a crustacean parasite that destroys the tongue of its fish host, then acts as a fully functional replacement tongue. a. ) Their immune system is on all the time so they loose energy overall. Helicobacter pylori bacteria that causes ulsers parasite castration the parasite gets big because the host is putting energy into growing the parasite instead of growing gammetes afferant going to efferant away from pathology. The study of the mechanisms that cause morbidity and mortality. pathogenesis. The cellular processes and reactions that bring about the diseased state. pathogenicity. The ability of an organism or substance to cause disease. virulence. An indicator of a parasite"s potential to cause disease. It is usually strongly associated with the organism"s ability to reproduce within its host. Host factors that influence pathogenesis: there are many, and they interact synergistically, host genetic constitution: is major. Some genetically distinct populations experience much more susceptibility to a specific parasite than the general population.
