Flatworm Anatomy

The flatworm is basically a layer of tissue that has a muscular reproductive and water and salt regulating systems. For example a flatworm called giardia is a common parasite found in contaminated drinking water that if consumed can cause diarrhea and severe dehydration.

Anatomy Of Animals

Flatworms are found many places and can be free living or parasitic.

Flatworm anatomy. While there are plenty of free living. There are about 20000 species in this group. A flatworm has a thin dorsoventrally flattened body.

Planaria are common to many parts of the world living in both saltwater and freshwater ponds and rivers. Flatworms 27 1 kingdom animalia phylum platyhelminthes flatworms three embryonic germ layers bilateral symmetry cephalization head coelom greek for cavity or hollow a fluid filled body cavity acoelomates without coelom. The digestive cavity has only one opening for both ingestion and egestion.

Nematode anatomy cylindrical shape bilateral symmetry covered with a secreted cuticle four bands of longitudinal muscles fluid in the pseudocoel forms hydrostatic skeleton are most nematodes monoecious or dioecious. The flatworms flat worms platyhelminthes plathelminthes or platyhelminths are a phylum of relatively simple bilaterian unsegmented soft bodied invertebrates. One of the best known flatworms is the tapeworm.

General physical traits anatomy. The flatworms include more than 13000 species of free living and parasitic species. The difference between flatworms and roundworms different forms different functions.

Dugesia is another common planarian although its not parasitic. For example a planarian split lengthwise or crosswise will regenerate into two separate individuals. Flatworms are bilaterally symmetrical.

Anatomy of a flatworm. Free living carnivores or scavengers have digestive cavity mouth pharynx. Flatworms are acoelomate which means they do not have a body cavity.

The color of the flatworm is a very dark brown and the stomach with a thin pale line. Test your knowledge about flatworm anatomy with this online quiz. Planaria exhibit an extraordinary ability to regenerate lost body parts.

A trivia quiz called flatworm anatomy. They all have flattened bodies that are shaped like broad leaves. There are 3 classes of flat worms the planarians flukes and tapeworms.

The back of the flatworm is a pale gray. As a result the food cannot b. Flatworms are the simplest of the worm groups.

Red planaria are flatworms that can damage coral reefs in the ocean. This means that they can only be cut them length wise to produce two mirror image halves. Unlike other bilaterians they are acoelomates and have no specialized circulatory and respiratory organs which restricts them to having flattened shapes that allow oxygen and nutrients to pass through their bodies by diffusion.

A parasite lives off another living thing called a host and can be harmful. A planarian is one of many flatworms of the class turbellaria. Some species are terrestrial and are found under logs in or on the soil and on plants in humid areas.

Form and function in flatworms feeding.

Phylum Platyhelminthes Flatworms Central Board Of