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Circulatory System – Actinopterygii (bony fishes)

Circulatory System – Actinopterygii (bony fishes). Closed 2 chambered heart Atrium and ventricle Single loop heart  gills  body  heart. Silver toothed barracuda. Circulatory System - Amphibia. Closed 3 chambered heart 2 atria & ventricle Double loop heart  lungs  heart

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Circulatory System – Actinopterygii (bony fishes)

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  1. Circulatory System – Actinopterygii (bony fishes) • Closed • 2 chambered heart • Atrium and ventricle • Single loop heart  gills  body  heart Silver toothed barracuda

  2. Circulatory System - Amphibia • Closed • 3 chambered heart • 2 atria & ventricle • Double loop heart  lungs  heart (pulmonary circulation) Heart  body  heart (systemic circulation) Golden Poison Dart Frog

  3. Circulatory System - Reptilia • Closed • 3 (1/2) chambered heart • 2 Atria and partially divided ventricle • Double loop heart  lungs  heart  body  heart

  4. Circulatory System - Aves • Closed • 4 chambered heart • 2 Atria and 2 ventricles • Double loop heart  lungs  heart  body  heart • Right aortic arch

  5. Circulatory System - Mammalia • Closed • 4 chambered heart • 2 Atria and 2 ventricles • Double loop heart  lungs  heart  body  heart • Left aortic arch

  6. Cardiovascular System

  7. Respiratory System • Actinopterygii • Gills • Amphibia • Larva – gills • Adult – lungs, skin, mouth, nostrils

  8. Respiratory System • Reptilia • Lungs only; alveoli • Aves • Lungs only • Air sacs; alveoli • Mammalia • Lungs only; alveoli • Diaphragm

  9. Respiratory System

  10. Digestive System • Actinopterygii • Alimentary canal (mouth  anus) • Liver, gall bladder, pancreas • Amphibia • Alimentary canal • Cloaca • Liver, gall bladder, pancreas

  11. Digestive System • Reptilia • Alimentary canal • Liver, gall bladder, pancreas • Cloaca (uric acid crystals) • Aves • Alimentary canal • Crop and gizzard • Liver, gall bladder, pancreas

  12. Digestive System • Mammalia • Alimentary canal • Liver, gall bladder, pancreas • Ruminants • Cellulase (from bacteria) in the rumen • Chew cud • Cecum

  13. Digestive System

  14. Nervous System - Actinopterygii • Olfactory lobes • Optic lobes (largest) • Cerebrum (smell only) • Cerebellum • Medulla oblongata

  15. Nervous System – Amphibia, Reptilia, Aves • Olfactory lobes • Optic lobes • Cerebrum (behavior, learning, voluntary muscles and continues to become larger) • Cerebellum • Medulla oblongata

  16. Nervous System – Mammalia • Olfactory lobes • Cerebrum (largest of the vertebrates) • 4 lobes (frontal, occipital, parietal, temporal) • Cerebellum • Brain stem (pons, medulla oblongata, midbrain)

  17. Nervous System - Brain

  18. Reproductive System - Actinopterygii • External • Mostly oviparous • Few are ovoviviparous • Spawning • milt

  19. Reproductive System - Amphibia • External • Amplexus • Enlarged male thumb • Most are oviparous • Few are ovoviviparous

  20. Reproductive System - Reptilia • Internal • Amniote egg • Most are oviparous • Some are ovoviviparous

  21. Reproductive System - Aves • Internal • Amniote egg • Egg tooth • Incubation • Brood patch • Oviparous

  22. Reproductive System - Mammalia • Internal • Most are viviparous • Few are oviparous (monotremes) • Uterus • placenta

  23. Reproductive System Female Male

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