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Related Flashcards
Cards In This Set
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Protection of the skin
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Placoid scales
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Controlling the sharks direction as it swims
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Fins (except caudal)
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Propelling the shark
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Tail and caudal fin
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Grsping prey and cutting off pieces of meat, but not chewing
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Teeth
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Discharges water that has come in through the mouth and passed over the gills
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External gill slits
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Swallowing and also passing incoming water to gills
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Pharynx
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Heavily vascularized, feathery fans of tissue that take oxygen from the water passing over them and discharge carbon dioxide to it
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Gills
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Allowing water to enter the mouth of the shark when it is holding food in its jaw
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Spiracle
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Canals from top of head to inner ear (possibly a role in equillibrium)
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Endolymphatic pores
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Sample of water for odors
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External nares
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Sensing minute electrical fields given off by prey
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Ampullae of lorenzini
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Sensing tiny pressure disturbances in the water, such as those made by swimming prey
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Lateral line system
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Outlet for feces, urine, and reproductive products
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Cloaca
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Dischares urine and sperm into the cloaca in the male
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Urogenital papilla
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Discharges urine into the cloaca in the female
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Urinary papilla
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