Anatomy: Skeletal System

Bones have two purposes. Some, like your backbone, provide the structure which enables you to stand erect instead of lying like a puddle on the floor. Other bones protect the delicate, and sometimes soft insides of your body.

Parts Involved in the Skeleton

  • Bones – adult skeletons have 206; newborns have significantly more that fuse with age
  • Cartilage – tense connective tissue that serves structurally and protectively
  • Ligaments – bands of fibrous connective tissue that connect bones to other bones (forming a joint)

Framework Functions

  • Structural integrity
  • Protection for other systems
  • Blood cell production occurs in the marrow

Skeletal Fun Facts

You have over 230 movable and semi-movable joints in your body.

Humans and giraffes have the same number of neck bones; clearly they’re not the same length proportionally!

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