Bone shape relates to function. Broad skull bones protect the brain, the rib cage surrounds chest organs, and long limb bones help support and move the body. Compact and spongy regions contribute to structure without making every bone solid throughout. Living bone cells maintain tissue, and marrow has additional important roles.
The human body · Discover & try
How can bones support and protect the body?
Reading level 3 of 5 · IndependentChange
Word help
Skeleton
The body’s framework of bones.
Marrow
Soft tissue inside bones; some marrow makes blood cells.
Watch · Try · Explain
See how it works
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Original simplified skeletal shapes and internal regions. Several structural and biological roles overlap in each bone.
What to look for
- Match each structure to its role.
- Compare a shell with a long supporting bone.
Explain what you noticed
Vertebrae surround the spinal cord. Which familiar bone role does that illustrate?
Keep this idea: Bones are living structures whose forms support movement, support and protection.
Follow the sources
- NIH NIAMS — Health Lesson: Learning About Bones
- NIH National Cancer Institute — Introduction to the Skeletal System
Source material checked 2026-10-28. Explanations and activities by Nepedia. Source links do not imply endorsement.
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