skeleton teaser

We all know skeletons are synonymous with Halloween, but there’s no reason to be afraid! The skeletal system does so much more than just keeping your body upright — it even helps to make blood cells!

Functions of the Skeletal System

Made up of 206 bones, the skeletal system’s functions include:

  • Blood cell production
  • Support
  • Movement
  • Protection
  • Ion storage
  • Endocrine regulation

Bone Composition

Do you know what makes up a bone in your body? Working from the outside in, here is a breakdown of your bone composition:

  1. Periosteum – Outer surface, thin membrane containing nerves and blood vessels
  2. Compact bone – smooth and hard, under the periosteum
  3. Cancellous bone – inside compact bone, resembles a sponge
  4. Bone marrow – inside compact bone, makes blood cells, resembles a thick jelly

Check out our infographic to see why skeletons are nothing to be afraid of: