internal anatomy of fish
DESCRIPTION
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. - PowerPoint PPT PresentationTRANSCRIPT
Internal Anatomy of Fish
Cell
Tissue
Organ
Organ System
Organism
Smooth Muscle CellSmooth
Muscle Cell
Tissue
Fish Digestive System
Stomach
Fish
Organization of Life
Integumentary System
• Skin
• Most general function is protection and coloration
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
Skeletal System
• Class Osteichthyes: Bones & Cartilage
• Class Chondricthyes: Cartilage
• General function is support and movement
• Also protects inner organs
Muscular System
• General function is movement
• 3 types of muscles– Skeletal
• Moving on purpose• Voluntary
– Smooth• Controls inner organs• Involuntary
– Cardiac• Move blood• Involuntary
Digestive System
• General function is to process food and use for nutrients/energy.
• Mouth
• Esophagus
• Digestive Tube
• Digestive Glands (make enzymes or store them)– Liver, pancreas, gall bladder
• Anus
Respiratory System
• General Function is oxygen and carbon dioxide exchange
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
Circulatory System
• General function is to transport body fluids
• Heart– 1st place blood is pumped is to the gills
• Arteries (Away from heart)
• Capillaries (Gas and nutrient exchange)
• Veins (Toward heart)
Excretory System
• General function is to remove waste from blood
• Uses kidneys
Reproductive System
• General function is to perpetuate the species
Nervous System
• General function is sensing, coordination of movements, and response to stimuli.– Composed of brain, nerves, lateral line, eyes,
ears, and nose
Fish Brain!1. Olfactory Lobes (smelling)
2. Cerebrum (smelling and other senses)
3. Optic Lobes (sight, sound, and lateral line senses)
4. Cerebellum (muscle coordination)
5. Spinal Cord (connects all muscles and nerves to the brain)
Endocrine System
• General function is chemical regulation of hormones.
• Hormones can:– Control rate of growth– Control development of sex
characteristics– Control capacity to respond
to light and stress