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21 Cards in this Set
- Front
- Back
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What structure determines the difference between a heterocercal and a homocercal caudal fin?
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The vertebral column
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These fish are less derived actinopterygians.
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Amia
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These fish are dorsally ventrally compressed.
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Siluriformes
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This structure articulates the caudal fin for propulsion
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Peduncle
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These fish have pharyngeal teeth.
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Cyprinformes
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These fish have deeply embedded cycloid scales.
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Anguilliformes
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This fin has no rays.
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Adipose
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The body mass of a fish influences its...
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inertial drag
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These fish have lungs
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Sarcopterygian
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Fishes exhibit what types of ventilation pump?
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Negative
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What structure located in bony fish hearts is analogous to the conus arteriosus found in cartilagenous fishes?
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The Bulbus arteriosus
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How many chambers does a fish heart have?
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4- SV, A, V, BA
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What is the structure used for absorption is found in bony fish digestion?
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Pyloric ceaca
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What are the types of fins found on a fish?
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Pectoral, Pelvic, Anal, Caudal
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Name 5 external anatomical characteristics of fishes.
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Nostril, Operculum, Lateral Line, all the fins
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The Spiral valve is in which vertebrate group?
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Chondrichthyes
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What is a way that a fish can stay upright in the water?
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flapping its pectoral fins, swim bladder, liver, lungs
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What are the three types of forces that a fish encounters?
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Viscous drag- when medium (water) hits their body surface
Vortex drag- when fish moves caudal fin and eddies are created Inertial drag- created by its own mass |
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What is a brachiostegal ray?
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bony rays supporting the gill membranes behind the lower jaw
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What are the three types of tails? Name a fish that exhibits each type.
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Diphycercal- Amia, homocercal-Salmoniformes and heterocercal- cartilagenous fish- sharks
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Name a bony fish order that has a subterminal mouth.
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Acipenseriformes
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