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Support and Locomotion

Support and Locomotion. The skeletal and muscular systems. Locomotion. The ability to move from place to place Motile Remember, organisms that can not move are stationary or sessile. Why Move?. Easier to obtain food Easier to find a suitable place to live Escape from predators

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Support and Locomotion

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  1. Support and Locomotion The skeletal and muscular systems

  2. Locomotion • The ability to move from place to place • Motile • Remember, organisms that can not move are stationary or sessile.

  3. Why Move? • Easier to obtain food • Easier to find a suitable place to live • Escape from predators • Reproduction and finding a mate

  4. Locomotion generally requires… • A muscular system and a skeletal system

  5. Endoskeleton- Bone and cartilage inside body walls Examples) vertebrates like us Exoskeleton- Hard outer material made of calcium or chitin Examples) clams, oysters, insects, crabs, spiders 2 types of skeletal systems

  6. Endoskeleton Exoskeleton

  7. Ameba Paramecium Euglena Pseudopods Cilia Flagella Locomotion in Protist-a review

  8. Paramecium Euglena Ameba

  9. Human Skeletal System • Made of : • Bone • Cartilage • Ligaments • Tendons

  10. Bone-”osteo-” • Connective tissue that is hard and inflexible • Site of attachment for muscles • Gives body shape and support • Protection • Storage for minerals (calcium, phosphorus) • Produces blood cells

  11. Diagram of Human Skeletal System

  12. Cartilage • Connective tissue able to bend • Embryos have skeletons of cartilage • Turns to bone by ossification after birth • Function: Cushions against impact or pressure

  13. Joints • Points where bones meet

  14. Ligaments • Connective tissue holding bones of a joint together

  15. Tendons • Connective tissue attaching muscle to bone

  16. The muscular system • Three types of muscle • Skeletal • Smooth • Cardiac

  17. Skeletal Muscle • Used for voluntary movements • Has a striated or striped appearance

  18. Smooth Muscle • Used for automatic, involuntary movements • Ex) walls of alimentary canal, diaphragm

  19. Cardiac Muscle • Heart muscle • Involuntary • Striped appearance

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