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Body Systems and Frog Pre-Lab. What's My Function?. Circulatory Digestive Endocrine Excretory Immune Muscular Nervous Reproductive Respiratory Skeletal Skin( Integumentary ). Carries needed material to and waste away from the body Takes in food, breaks it down, & absorbs nutrients
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What's My Function? Circulatory Digestive Endocrine Excretory Immune Muscular Nervous Reproductive Respiratory Skeletal Skin(Integumentary) Carries needed material to and waste away from the body Takes in food, breaks it down, & absorbs nutrients Controls many regulatory processes by mean of chemicals Removes waste Fights disease Enables the body to move (voluntary & involuntary motion) Detects and interprets information from the environment outside the body and from within the body Produces sex cells & controls male & female characteristics Gas Exchange of oxygen and carbon dioxide Supports the body, protects it and works with muscles to allow movement Protects the body, keeps water inside the body & regulates body temperature
Levels of Organization • chemicals • atoms • molecules • macromolecules • organelles • cells • tissues • organs • organ systems • organism
Amphibians Leopard Frog Frog Sound
Amphibians • Lobe-finned fish gave rise to early amphibian Coelacanth ~ 6.5 feet Early Amphibian ~ 15 feet
Amphibian Characteristics • 1. Legs – adaptation to land • 2. Lungs (adult) – adaptation to land • 3. Double-loop circulation • 4. Partially Divided heart divided into left and right sides – 3 chambers • 5. Cutaneous Respiration – the ability to breath through the skin
3 methods to take in Oxygen Gills Cutaneous Respiration (skin) Lungs
Order Urodela (Salamanders) – “tailed ones” Mexican axolotl Tiger Salamander Giant Salamander –found in Asia and China Pacific Giant Salamander Red Spotted Newt
Order Caecilians - “legless ones” Costa Rican - Gymnopismultiplicata Purple Caecilian
Order Anura - “Tailless one’s” The Harlequin Frog Bullfrog Wallace’s Flying Frog Golden Poison Dart Frog Red-Eyed Tree Frog Cane Toad Strawberry Poison Dart Frogs
Structures Nictitating membrane Tympanic membrane
Structures: • Tongue • Gullet • Glottis • Eustachian tube • Maxillary teeth • Vomerine teeth
Structures • Fat bodies • Liver • Heart • Lungs • Gall bladder
Structures • Stomach • Small intestine • Mesentary • Large intestine/ Cloaca • Spleen • Esophagus