Eumetazoa Bilateria triploblastic Phylum Platyhelminthes Flatworms Parenchyma tissue

Eumetazoa: Bilateria triploblastic

Phylum Platyhelminthes Flatworms

Parenchyma tissue Parenchyma Functions: “Skeletal support, nutrient storage, motility, reserves of regenerative cells, transport of materials, interactions between tissues, oxygen storage, perhaps other…” Conn 1993. The biology of flatworms (Platyhelminthes): parenchyma cells and extracellular matrices

Phylum Platyhelminthes Class Turbellaria: Turbellarians

Turbellarians structure & function

Regeneration

https: //www. youtube. com/watch? v=wn 3 xlu. IRh 1 Y&app=desktop Marine

Freshwater & Terrestrial

Phylum Platyhelminthes Class Trematoda: Flukes https: //www. youtube. com/watch? v =fq. UV_FFTQa 8

Female Schistosoma Male

Swimmer’s Itch (cercarial dermatitis)

Phylum Platyhelminthes Class Cestoda: Tapeworms

Proglottid Reproduction Sally Mae Wallace on September 05, 1991

Phylum Nemertea Ribbon Worms https: //www. youtube. com/watch? v=2 cj. Mn 7 A c. Cq 4&ebc=ANy. Px. Kp. Do 1 w. EL 8 O_Ep 4 Uuow 2 Qx. Bg. KChw 38 fkzso. L 4 Gx. YP 3 UPybcdvdmve 5 Vxi. W_0 Zifr. EXU 4 hc o. YNi 9 lh. T 1 li 2 ztl 5 NU 8 lr. A http: //www. yout ube. com/watch? v =q. T 2 x 9 Yuowq. U Copyright © Mc. Graw-Hill Companies Permission required for reproduction or display

Phylum Nematoda Roundworms

Nematode Anatomy

Other Nematode Parasites https: //www. youtu be. com/watch? v=P r. Ulhuf. Wl. IA

Filarial Nematodes Matchstick Worm (Dracunculus) Wuchereria bancrofti (elephantiasis) Loa loa (eye worm) Onchocerca volvulus (river blindness) https: //www. youtube. c om/watch? v=ph. Cod 0 tfk. E

http: //www. yo utube. com/wa tch? v=v 2 Jn. X 9 Yy-D 8 Phylum Rotifera Rotifers

Phylum: Nematomorpha https: //www. youtube. com/watch? v =Ou. HGdv 4 ZLj. A

Pseudocoelomate Phyla • • • Nematoda Rotifera Nematomorpha Gastrotricha Kinorhyncha Acanthocephala Entoprocta Priapulida Loricifera

Phylum Cycliophora • • Discovered in 1995 Single species: Symbion pandora Found in only 1 location Circular with mouth surrounded by hair-like ciliated bristles • Complex life cycle Dr. Peter Funch

Phylum Cycliophora • Lobster Lips – Norway Lobster – Nephrops norvegicus

Phylum Tardigrada water bears • • • Small (<1 mm) Water film of lichens and mosses Also freshwater and marine Coelomate Piercing mouthparts Remarkable cryptobiosis