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Name: Name: Frog Dissection Study Guide Be able to identify these structures and describe their functions and interactions with other parts: ventral-belly side, dorsal-back side, thumb pads, 4 digits-forelimb, 5 digits-hindlimb, no ribscartilage, nictitating membrane, tympanum, Eustachian tube, maxillary teeth, vomerine teeth, glottis, eye bulges, gullet Digestive System: liver, gall bladder, stomach, pancreas, small intestine, large intestine, fat bodies Circulatory System: 3 chambered heart: right and left atrium, ventricle Respiratory System: lungs Urogenital System: oviducts/eggs or testes, kidneys, cloaca/vent, urinary bladder, spleen eyes, brain skinned hind limb, Achilles tendon, femur, tibiofibula, tarsal, metatarsals, bone marrow, 1 Frog Dissection Study Guide 1. How does the tongue attachment and other mouth parts help frogs capture food? _______________________ _______________________ _______________________ _______________________ _______________________ _______________________ _______________________ _______________________ 2. Describe how each of these is an adaptation to amphibious lifestyle: external nares, typanum, nictitating membrane _______________________ _______________________ _______________________ _______________________ _______________________ _______________________ _______________________ _______________________ _______________________ _______________________ _______________________ 2 Frog Dissection Study Guide 3. How does a frog’s digestive system break down food, absorb nutrients, and process undigested material (describe each part along the path of food)? _______________________ _______________________ _______________________ _______________________ _______________________ _______________________ _______________________ _______________________ _______________________ _______________________ _______________________ _______________________ _______________________ _______________________ _______________________ _______________________ _______________________ _______________________ _______________________ _______________________ 3 Frog Dissection Study Guide 4. How does blood circulate through the heart and body to provide oxygen and nutrients (describe all chambers and loops)? __________________________ __________________________ __________________________ __________________________ __________________________ __________________________ __________________________ __________________________ 5. Do internal parts support what we thought the gender of our frog was based on external clues (describe the external clues and internal parts)? __________________________ __________________________ __________________________ __________________________ __________________________ __________________________ __________________________ __________________________ __________________________ __________________________ _________________________ 4 Frog Dissection Study Guide 6. Describe how capillaries in the skin function like capillaries in the lungs to aid respiration __________________________ __________________________ __________________________ __________________________ __________________________ __________________________ __________________________ __________________________ 7. Describe how flexor and extensor muscle pairs and joints allow the frog to jump and swim __________________________ __________________________ __________________________ __________________________ __________________________ __________________________ __________________________ __________________________ __________________________ __________________________ __________________________ __________________________ __________________________ __________________________ 5 Frog Dissection Study Guide Use this side for additional sketches and notes: 6
