The musculoskeletal system of vertebrates

In this topic

• The internal skeleton and what it does
• Parts of the skeleton
• How bones join, and how muscles work
• Skeletons fitted to a way of life

Key terms

• Skeleton
• Internal skeleton
• Backbone
• Rib cage
• Joint
• Suture
• Shoulder girdle
• Pelvic girdle
• Flexor
• Extensor
• Antagonistic muscles
• Keel

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