Human locomotion

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  • 1. Human Locomotion

2. Human Locomotion

  • Involves the movement of
    • Bones
    • Cartilage
    • Muscles
    • Tendons
    • Ligaments
  • It allows humans to move from place to place

3. Human Skeletal System

  • It contains bones of many different shapes and sizes
    • Purposes
      • Support and protection of body structure
      • Anchors muscle action
      • Leverage fo body movement
      • Produces blood cells in the marrow

4. Cartilage

  • Connective tissues
    • It is flexible and elastic
    • It give support
    • Flexibility of joints
    • Cushions effects in joints
  • It makes up most of the bodys skeleton
  • By adulthood most of the cartilage is taken over by bones
    • Found:
      • End of ribs
      • Nose
      • Ears
      • bronchi
      • Trachea

5. Human Muscular System

  • There are three types of muscles in the human body
    • Visceral
      • Smooth in appearance
      • Involuntary in action

6. Human Muscular System

  • Cardiac muscles
    • Involuntary in action
    • Striped in appearance
  • Heart etc

7. Human Muscular System

  • Skeletal Muscle
    • Appearance
      • Voluntary in action
      • Striped in appearance
    • Controlled by the central nervous system
    • They are used to move bones in a coordinated manner
    • Muscles usually operate in pairs
      • Which pull on the bones on either side
        • INCLUDE
          • Extenders- which extend the limbs
          • Flexors return the limbs (bend the joints)

8. Tendons

  • Made up of connective tissues
  • They are tough, inelastic
  • They connect the muscle to the bone

9. Ligaments

  • Made up of tough elastic connective tissue
  • Able to stretch slightly during joint movement
  • Connect bones at joints such as
    • Elbows fingers knees

10. Problems that effect the Skeletal System

  • Arthritis
  • Tendonitis

11. Arthritis

  • Inflammation of the joints causing swelling an horrible pain
    • Cam occur at a young age
    • Usually occurs when old

12. Tendonitis

  • Inflammation (swelling) of the tendons usually at the bone attachment
    • Caused by physical stress and irritation to the spot
    • Common in athletes