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WILD 3580: AMPHIBIAN ANATOMY
1: Consists of two atria and a single ventricle
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Heart |
4: Oxygenated blood leaves here via pulmonary veins
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Lungs |
5: Production and storage of blood cells
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Spleen
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6: Unspecialized / Retains food items from 8-24 hours / Food mixes with gastric secretions here
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Stomach
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7: Additional secretions are made here (aid in digestion)
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Pancreas
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2: Bile is produced here (aids in digestion)
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Liver |
3: Temporaily stores liver bile
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Gall Bladder
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9: Food passes into here before moving on
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Small Intestine
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12: Chemical digestion and absorption of water occurs here
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Large Intestine
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10; Eliminate nitrogenous waste from digestion of proteins / Maintains salt content in body cells
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Kidneys |
13: Waste products drained from kidney are stored here / Is an outgrowth of the cloaca (Opening of contents of digestive, urinary, and reproductive systems in amphibians)
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Urinary Bladder
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14: Lined with smooth muscle and contracts to move eggs to cloaca / Glandular lining secretes jelly-like secretions around eggs (In some amphibians, fertilization is internal and occurs here)
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Oviduct
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15: Contains ovisacs (posterior end of the oviducts) where this mass is stored (External fertilization only)
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Egg Mass
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NOT SHOWN: In males, carries sperm from testes to cloaca (Dependent on amphibian group)
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Mesonpehric Duct (Vas Deferens)
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8: Source of nutrients for gonads / Largest prior to hibernation and are smallest just after breeding season
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Fat Bodies
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NOT SHOWN: Transfers sperm from male to female and is ONLY present in caecilians and one species of frog
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Intromittant organ to the Mesonephric Duct (Vas Deferens)
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