Title: Nematoda - Digestive System
Headings: 
Ascaris
Pinworm
Hookworms

Content: Finally, it includes an intestinal region in which absorption of small molecules take place, such as gulcose and amino acids. Pinworm
The pinworm, also known as the threadworm or seatworm, but most formally known as the Enterobius vermicularis, is a very common intestinal parasite that infect humans, mostly children. Enterobiasis refers to the disease associated with the pinworm infestation in the body. Pinworms are the most common type of roundworms found in the USA. They are parasites that feed off of the human body to survive and reproduce. The pinworm's eggs pass through the digestive tract in the body they infect, where they hatch in the small intestine to become the larval stage. Pinworm larvae then travel from the small intestine to the large intestine, where they attach to the intestinal wall. About two to six weeks after the eggs have been swallowed, adult female pinworms migrate from the large intestine to the rectum, where they exit from the anus to lay numerous eggs on nearby skin. The adult pinworms then return to the large intestine, where they most likely decay and die, but the new eggs then become active within a few hours and live for about three weeks, until a new generation of eggs are born. Hookworms
The hookworm is a parasitic nematode that lives in the small intestine of its host, which may be in a mammal such as a dog, cat, or human.