Page 17 - e book prim 6
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Delta Modern Language Schools Moving muscles
Science department
Grade 6
1st term 2024- 2025
(Skeletal system and muscular system interaction)
When your forearms is pulled When your forearm moves down
The front muscle (Contract) The front muscle (relaxes)
The back muscle (relaxes)
The back muscle (Contacts)
Notes
1. The skeletal muscles that are attached to the bones of skeletal system (such as
the bones of fingers, legs, arms and other body parts) contract and relax to allow
these bones to move.
2. The muscle can only exert force when it contracts.
3. The contraction of muscles moves the bones in one direction only.
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