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31 Cards in this Set
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Phylum Platyhminthes |
Free-living aquatic and parasitic flatworms. Soft bodied, bilaterally symmetric. Triploblastic tissue, acoelomate. |
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Phylum Platyhminthes Class Turbellaria (planarian) |
Mostly free-living, carnivorous aquatic forms. Ciliated epidermis |
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Phylum Platyhminthes Class Turbellaria (planarian) External Features |
Eyespots, gastrovascular cavity, pharynx, mouth, and Auricles |
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Phylum Platyhelminthes Class Turbellaria (planarian). Cross-Section |
Epidermis, gastrovascular cavity, mesoderm, pharynx, cilia, and the pharyngeal cavity |
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Phylum Platyhelminthes Class Turbellaria Auricle |
Sensory structures used to detect dissolved chemicals in water |
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Phylum Platyhelminthes Class Turbellaria Pharynx |
Muscular extension of gastrovascular cavity for feeding |
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Phylum Platyhelminthes Class Turbellaria Acoelomate |
No coelom central space filled with tissue (mesoderm) |
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Phylum Platyhelminthes Class Turbellaria Monoecious |
Referring to an organism that contains both male and female reproductive structures |
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Phylum Platyhelminthes Class Trematoda (Flukes) |
Parasitic with wide range of invertebrate hosts. Suckers for attachment to host. |
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Phylum Platyhelminthes Class Trematoda --> Clonorchis sinensis (Human Liver Fluke) |
Oral Sucker, ventral sucker, pharynx, testes, uterus, gastrovascular cavity, excretory pore, yolk glands |
Primary Host: humans Secondary Host: snail or fish |
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Phylum Platyhelminthes Class Trematoda Fasciola hepatica (sheep liver fluke) |
Oral sucker, ventral sucker, testes |
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Phylum Platyhelminthes Class Trematoda Fasciola hepatica Pharynx |
Muscular tube for pumping in the blood and body fluids from host |
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Phylum: Nematoda (roundworms ) Genus: Ascaris |
Pseudocoelom with complete digestive tract. Usually dioecious. Free-living and parasitic members |
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Phylum Nematoda Genus Ascaris Features |
Mouth, pharynx, pseudocoelm, anus, cuticle, lateral line, spicules (male), seminal vesicle (male), and uterus (female) |
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Phylum Platyhelminthes Class Cestoda (tapeworms) |
Parasitic in most vertebrate hosts. Complex lifecycle with intermediate and multiple hosts. Obtains food using microtriches (minute projections covering body surfaces) |
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Phylum Platyhelminthes Class Cestoda (tapeworms) Features |
Scolex, hooks, suckers, neck, immature proglottids, mature proglottids, Gravid proglottids |
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Phylum Mollusca |
Four major morphological features : shell, mantle, visceral mass, and foot |
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Phylum Mollusca Class Bivalvia External Features |
Anterior, Posterior, Dorsal, Ventral |
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Phylum Mollusca Class Bivalvia Dissection |
Incurrent siphon, excurrent siphon, gills, mantle and shell, heart, kidney, foot,visceral mass, adductor muscles, labial palps, mouth, stomach, digestive gland, intestine, gonad |
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Phylum Mollusca Class Bivalvia Incurrent and Excurrent Siphons |
Extendable fleshy tubes that transport water into and out of the body |
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Phylum Mollusca Class Bivalvia. Viceral Mass |
Pouch that houses several major internal organs |
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Phylum Mollusca Class Bivalvia. Labial Palps |
Fleshy falls of skin located near the mouth that collect food particles from the gills and transport them to the mouth |
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Phylum Mollusca Class: Cephalopoda |
Marine predators. Foot separated into tentacles and arms. Well developed eyes. |
Squid |
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Phylum: Mollusca Class: Cephalopoda Features |
Collar, eye, siphon, mantle, arms, tentacles, fins, gills, rectum, ink sac, retractor muscles, cecum, systematic heart, branchial hearts. |
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Phylum Mollusca Class Cephalopod. Systematic Heart |
Large, muscular ventricle that receives oxygenated blood from the gills and pumps it throughout the body |
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Phylum Mollusca Class Cephalopod. Branchial Hearts |
Smaller muscular chambers that received deoxygenated blood from all parts of the body and pump blood to the gills |
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Phylum Annelids |
Segmented worms. True coelom . Closed circulatory system. Complete digestive tract. |
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Phylum Annelid Class Polychaeta Anatomy |
Dorsal blood vessel, intestine, coelom, parapodium, setae |
Sand worm |
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Phylum Annelids Class Oligochaete |
Mouth, clitellum (middle squishy thing), pharynx, esophagus, crop, gizzard, intestine,hearts, nephridia, septa, ovaries , seminal vesicles |
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Phylum Annelids Class Oligochaete Cross-Section |
Dorsal blood vessel, intestine, coelom, ventral nerve cord, epidermis, circular muscle, longitudinal muscle , typhlosole |
Earthworm |
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Phylum Annelids Class Hirudinea Features |
Anterior sucker, mouth, pharynx, intestine, posterior sucker, anus |
Leeches |