Large Intestine - Posterior organ of the digestive system which stores undigested food. Pancreas - Gland which secretes digestive enzymes into the duodenum.Duodenum - The anterior (front) part of the small intestine into which food passes from the stomach.Small Intestine - The principal organ of digestion and absorption of digested food.Stomach - Stores food and mixes it with enzymes to begin digestion.Cloacal Opening - Opening of cloaca through which undigested food, urine, eggs, and sperm are passed.įunctions of the Internal Anatomy of a Frog:.Nictitating Membrane - A transparent part of a frog’s lower eyelid that moves over the eye to clean it and protect it.Eustachian tube openings - Openings in the mouth that lead to tubes that connect to the middle ear to equalize air pressureįunctions of the External Anatomy of the Frog.Vomerine Teeth - Small projections in the top of a frog’s mouth that function in holding and captured prey.Maxillary Teeth - Sharp teeth in the maxilla of a frogs mouth that function in holding captured prey.Tongue - Muscular structure attached to the front of the mouth which is extended to catch insects (its food).Glottis - The opening from the mouth into the respiratory system.Tympanic Membrane - The eardrum - receives sound waves.Esophagus - Tube that connects the mouth and the stomach in a frog.External nares or nostrils - Anterior openings for the entry or exit of air.Functions of the body parts that make up the frog’s head
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