Title: Nematoda - Digestive System
Headings: 
Ascaris
Pinworm
Hookworms

Content: Nematoda - Digestive System

Ascaris
Ascaris is a genus of parasitic nematode worms known as the "giant intestinal roundworms". Some species typically infect pigs, while others, affects human populations, typically in the sub-tropical and tropical areas with poor health conditions that allow for ascaris worms to infect human beings. Its digestive tract ingests food, breaks macromolecules into their subunits, and allows for the absorption of glucose and amino acids. This animal has some a mouth structure for the ingestion of food that is connected to a tube, which passes through the body of the worm and terminates at an anus, where undigested waste products are excreted. The ascaris' digestive tract includes one muscular structure to ensure that food moves through the tract in the proper direction. 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.