PPT-Platyhelminthes

BSC 2011L Animal Characteristics Symmetry Radiata radial symmetry diploblastic 2 tissues Bilateria bilateral symmetry triploblastic Body Cavity Acoelomates no cavity. Bauplan. (pl. . Baupläne. ) The generalized body plan of an archetypal member of a major taxon.. A . body plan, . baupläne. , ground plan, ground pattern. , or . bodyplan. , is "an assemblage of morphological features shared among many members of a phylum-level group". VMP . 920. Infection & Immunity II. Veterinary . Parasitology. Nematoda. Triploblastic. Bilateral. Cuticle (secreted). Longitudinal Muscles only. Psuedocoelomate. Dioecious . Complete Digestive Tract. Link to video. Flatworms - General Information. 3. . phyla in Ch. 14 – We are going to focus . mainly on . Phylum Platyhelminthes . Symmetry. : Bilateral. Cephalization. - head end concentrated with sense organs and nervous control. Link to video. . Link to video. Flatworms - General Information. Symmetry. : Bilateral. Cephalization. - head end concentrated with sense organs and nervous control. Tripoblastic. - has a middle germ layer (mesoderm) as well as ectoderm and endoderm . PLATYHELMINTHES. (flatworms, tapeworms). Porifera. Cnidaria. Ctenophora. Platyhelminthes. Rotifera. Nematoda. Nemertea. Mollusca. Annellida. Arthropoda. Bryozoa. Phoronida. Brachiopoda. Echinodermata. Class. Order. Family. Genus. Species. Mammalia. Aves. Primates. Carnivora. Hominidae. Hylobatidae. Homo. Hylobates. sapiens. antecessor. Chordata. Arthropoda. Insecta. Arachnida. Hymenoptera. Isoptera. Who Am I?. Liver Fluke. A . fluke is a type of small, parasitic . flatworm . that feeds on the blood or body of its host. The sheep liver fluke attacks sheep and cattle and has even been known to infect humans, making them seriously ill. . Hymenolepis. nana. – The Dwarf Tapeworm. Frequency - most common tapeworm infection in humans.. Requires no intermediate host - can use insects such as fleas or beetles, but these are not required.. Characteristics. . Unsegmented. worms. Simplest animals with. . Bilateral symmetry. No . specialized . circulatory. or . respiratory. system. (uses diffusion to transport oxygen and . nutrients). Phylum Nematoda. Phylum Annelida. Choanoflagellates. The Worm Characteristics. Bilateral. symmetry – the simplest organisms to exhibit this type of symmetry. Invertebrates – use . hydrostatic. pressure to provide structural support (made of . Characteristics of Phylum Platyhelminthes (means “flat worm”). Flatworms have . three germ layers (. triploblastic. ); they are the first animal we have discussed in this class with . true organs and tissues. Almonther. I. . Alhamedi. The Islamic University of Gaza. Department . of . Biology. E-mail : . mhamedi@iugaza.edu.ps. Web page :. http. ://site.iugaza.edu.ps/mhamedi. General characteristics. . Platyhelminthes, or . Animal Characteristics. Symmetry. Radiata. – radial symmetry, . diploblastic. (2 tissues). Bilateria. – bilateral symmetry, . triploblastic. Body Cavity. Acoelomates. – no cavity. Psuedocoelomates. Unique Features:. . First animals with Bilateral . symetry. .. . These are first . Triploblastic. animals .. . These have organ- system . organisation. .. . These are leaf like or ribbon like animals..