Entozoa refers to a class of parasitic worms that live inside the bodies of animals, including humans. The term "entozoa" is derived from the Greek words "entos," meaning "inside," and "zoon," meaning "animal." These worms are commonly found in the intestines, stomach, blood vessels, and other organs of their hosts.
Entozoa can be divided into two main groups: nematodes (roundworms) and platyhelminthes (flatworms). Nematodes are elongated, cylindrical worms, while platyhelminthes are flat and usually have a ribbon-like shape. Both groups may vary in size, ranging from microscopic to several meters in length. Some well-known examples of entozoa include tapeworms, hookworms, and pinworms.
Members of the class Entozoa have complex life cycles that often involve multiple hosts. They typically reproduce sexually within their host's body and then release eggs or larvae into the environment through feces or other biological waste. These eggs or larvae can infect other organisms, including humans, through ingestion or penetration of the skin.
Infections caused by entozoa are collectively known as entozoiasis. Symptoms of entozoiasis can vary depending on the specific parasite and the location of the infection but commonly include abdominal pain, diarrhea, anemia, malnutrition, and weight loss. Treatment typically involves the use of anthelmintic medications to eliminate the parasites from the host's body.
The study of entozoa is an important branch of parasitology as these organisms can cause significant health issues in both humans and animals. Understanding their life cycles and developing effective control measures are crucial for preventing and managing entozoan infections.
