1. Bones protect internal organs and support the body. 2. Muscles are attached to bones and move bones when they contract and relax. 3. Joints join bones together and help make the skeleton flexible by allowing bending and turning of the body.

2. Every time we move, we use
our bones, joints and muscles.
Together, these parts of the
body make up the locomotor
system.

3. Some of our bones proct
organs such as the heart and
brain, and others support our
body.

4. Muscles are attached to our
bones.
They’re made of a strong,
flexible tissue and they move our
bones when they contract and
relax.

5. Joints
help
make
our
skeleton flexible.
They join bones together
and allow us to bend and turn
our body.

26. 1.Bones proctect internal organs and_____________the body.
2.Muscles move bones when they ___________and______________.
3.Joints join_______________together and help make the skeleton.
4. There are ___ types of joints: ______joints, semi-flexible joints and
_______joints.
5. ____________muscles and _________ muscles are types of
muscles.
6. The knee cap or patella is a ___________bone.
7. The ______________ is a long bone.
8. Short bones provide ________ and ___________ to our body.
9. The ___________ is an involuntary muscle because …
10. ___________ allow a little movement. The vertebrae in our
body are joined by ________________joints.

27. •What
will happen if you place a thin, clean
chicken wing bone in a jar with vinegar?
•Clue:
vinegar removes calcium.

28. The bones are strong due to high calcium
content; vinegar removes calcium from the bone
and makes it soft.
That’s why you should have enough calcium
in your diet.