Final answer:
An ectopic parasite is a parasite that has ended up in an organ or part of the body where it normally does not live, potentially causing severe symptoms.
Step-by-step explanation:
A parasite that has 'wandered' into an organ that it normally would not live in is often referred to as an ectopic parasite. Parasites are typically associated with a particular organ or area of the host's body where they have adapted to live and reproduce, like hookworms in the small intestine and lungs or Plasmodium falciparum in the human liver and red blood cells. However, sometimes a parasite might end up in an unusual location within the host, which can lead to unexpected and potentially severe symptoms, as it is outside of its typical habitat where it may not be able to complete its reproductive cycle. This can occur due to various reasons such as accidental ingestion, migration from its primary location, or surgical procedures.
A parasite that has "wandered" into an organ that it normally would not live in is called an endoparasite. Endoparasites live inside their host's body and derive nutrients from it. They may enter the host through a break in the skin, or in food or water. For example, roundworms are parasites that live in the intestines of mammals, including humans. They produce eggs that are passed in the host's feces, and other individuals can be infected by swallowing the eggs in contaminated food or water.