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The Endoskeleton


  • It forms an internal body framework.
  • This is a type of skeleton characteristic of all vertebrates.
  • The endoskeleton is made of cartilage, bone or both.
  • It is made up of living tissues and grows steadily as animal grows.
  • Muscles are attached on the skeleton.
  • The muscles are connected to bones by ligaments.


  • The functions of endoskeleton include support, protection and movement.
  • Locomotion in a finned fish e.g. tilapia.
  • Most of the fishes are streamlined and have backward directed fins to reduce resistance due to water.