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Internal Anatomy of Fish

Internal Anatomy of Fish. Cell. Tissue. Organ. Organ System. Organism. Smooth Muscle Cell. Smooth Muscle Cell Tissue. Organization of Life. Stomach. Fish. Fish Digestive System. Integumentary System. Skin Most general function is protection and coloration.

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Internal Anatomy of Fish

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  1. Internal Anatomy of Fish

  2. Cell Tissue Organ Organ System Organism Smooth Muscle Cell Smooth Muscle Cell Tissue Organization of Life Stomach Fish Fish Digestive System

  3. Integumentary System • Skin • Most general function is protection and coloration

  4. Parts of the Integumentary System • Epidermis • Constantly regenerating • Mucus Layer • Helps slide through water • Rids fish of parasites • Scales • Give fish their color • Can help you determine age

  5. Skeletal System • Class Osteichthyes: Bones & Cartilage • Class Chondricthyes: Cartilage • General function is support and movement • Also protects inner organs

  6. Muscular System • General function is movement

  7. 3 types of muscles • Skeletal • Moving on purpose • Voluntary • Smooth • Controls inner organs • Involuntary • Cardiac • Move blood • Involuntary

  8. Digestive System • General function is to process food and use for nutrients/energy.

  9. Mouth • Esophagus • Digestive Tube • Digestive Glands (make enzymes or store them) • Liver, pancreas, gall bladder • Anus

  10. Respiratory System • General Function is oxygen and carbon dioxide exchange

  11. Gills • Gill raker keeps food from leaving mouth through gills • Gill filaments is where gas exchange occurs Gas bladder • Fills with air to keep fish buoyant

  12. Circulatory System • General function is to transport body fluids

  13. Heart • 1st place blood is pumped is to the gills • Arteries (Away from heart) • Capillaries (Gas and nutrient exchange) • Veins (Toward heart)

  14. Excretory System • General function is to remove waste from blood • Uses kidneys

  15. Reproductive System • General function is to perpetuate the species

  16. Nervous System • General function is sensing, coordination of movements, and response to stimuli. • Composed of brain, nerves, lateral line, eyes, ears, and nose

  17. Fish Brain! • Olfactory Lobes (smelling) • Cerebrum (smelling and other senses) • Optic Lobes (sight, sound, and lateral line senses) • Cerebellum (muscle coordination) • Spinal Cord (connects all muscles and nerves to the brain)

  18. Endocrine System • General function is chemical regulation of hormones. • Hormones can: • Control rate of growth • Control development of sexcharacteristics • Control capacity to respond to light and stress

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