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38 Cards in this Set
- Front
- Back
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Choanocytes |
Phylum Porifera Flagellated cells involved in many different activities, notably, digestion. |
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Ostia |
Phylum Porifera Incurrent pores |
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Prosopyls |
Phylum Porifera Internal pores |
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Radial Canals
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Phylum Porifera Prosopyls connect incurrent canals to these. |
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Apopyles |
Phylum Porifera Small, internal pores where water leaves the radial canals |
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Osculum |
Phylum Porifera Water exits the sponge through this single outcurrent pore. |
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Pinacocytes |
Phylum Porifera Thin, plate-like cells lining the outside of the sponge. |
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Amebocytes |
Phylum Porifera Amoeboid cells involved in intracellular digestion. Phylum Mollusca, Phylum Arthropoda Internal wandering cells that phagocytize foreign cells and particles. |
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Mesohyl |
Phylum Porifera Thin, gel-like matrix in which amebocytes are scattered. |
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Amphiblastula |
Phylum Porifera The larval form of the sponge. |
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Perisarc |
Phylum Cnidaria Protective outer covering found on some colonial cnidarians. |
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Epitheliomuscular cells |
Phylum Cnidaria Cells found in the epidermis. Capable of contraction. |
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Nutritive-muscular cells |
Phylum Cnidaria Cells found in the gastrodermis. Capable of contraction. |
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Scyphistoma |
Phylum Cnidaria AKA the polyp (Aurelia) |
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Strobila |
Phylum Cnidaria Life stage that forms many medusa by asexual budding. (Aurelia) |
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Ephyra |
Phylum Cnidaria Young immature medusa which grows into the sexually mature adult, either male or female. (Aurelia) |
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Miracidia |
Phylum Platyhelminthes Initial, short-lived larval stages of trematode fluke Opisthorchis. |
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Sporocyst |
Phylum Platyhelminthes Formed by a single miracidium. Asexually forms many larvae by creation of germ balls. |
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Rediae |
Phylum Platyhelminthes The larvae produced by a sporocyst. Active feeders. They form another larval stage through germ balls. |
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Cercariae |
Phylum Platyhelminthes The larvae produced by a redia. Short-lived. Encyst. |
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Metacercariae |
Phylum Platyhelminthes The encysted cercariae that the developing adult emerges from. |
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Eutely |
Phylum Nematoda All organisms of a species has the same number of cells as mature adults. |
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Renette Cells |
Phylum Nematoda Special excretory cells that absorb nitrogen wastes from pseudocoelomic fluids. |
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Typhlosole |
Phylum Annelida Ridge-like fold of the side of the intestine into the lumen. Increases absorptive surface area of the intestine. |
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Acicula |
Phylum Annelida Long dark spines connected to the body wall muscles. |
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Chlorogogue Cells |
Phylum Annelida May serve a variety of functions similar to the liver and kidney. |
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Tagmata |
Phylum Arthropoda Fused body segment. |
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Podomeres |
Phylum Arthropoda Jointed appendages. |
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Chelipeds |
Phylum Arthropoda Large, claw-like terminating limb. |
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Swimmerets |
Phylum Arthropoda First five segments of the abdomen, create water currents and function in reproduction—females temporarily carry their eggs on them. |
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Telson |
Phylum Arthropoda Sixth segment of the abdomen, which contains the anus. |
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Uropods |
Phylum Arthropoda Appendages next to the telson. |
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Pedicellariae |
Phylum Echinodermata Class Asteroidea, Class Holothuroidea, Class Crinoidea Small, pincer-like appendages |
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Pharyngeal basket |
Subphylum Urochordata Expanded pharynx which filters planktonic food suspended in water. |
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Cirri |
Subphylum Cephalochordata Finger-like tentacles that act as both sensors and strainers. |
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Myomeres |
Subphylum Cephalochordata Chevron-like muscle segments along the sides of a lancelet. |
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Endostyle |
Subphylum Cephalochordata Sits on the floor of the pharynx, produces mucus. |
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Heterocercal tail |
Class Chondrichthyes Upper lobe of the caudal fin larger than the lower lobe. |
