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!

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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:

About UPMC Orthopaedic Care

As a national leader in advanced orthopaedic care, UPMC treats a full range of musculoskeletal disorders, from the acute and chronic to the common and complex. Whether you have bone, muscle, or joint pain, we provide access to UPMC’s vast network of support services for both surgical and nonsurgical treatments and a full continuum of care. As leaders in research and clinical trials with cutting-edge tools and techniques, UPMC Presbyterian Shadyside appears on U.S. News & World Report’s rankings of the top hospitals in the country for orthopaedics.