assignment

Name: Date: Period: Homework (Use the words in the box to fill in the blanks)

 || blood shape bones || skeleton ribcage tendon minerals || skeletal cranium ligaments || jellyfish marrow move || There are around 206 ________ in the adult human body. These bones plus the connecting tissue make up the ___________system.
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 * protect

The skeletal system is very important for many reasons. Some bones help ______ our organs. The _______, for example, protects our brains and the _________protects our lungs.

The skeletal system also gives us our _______. Without a _______, we would be shapeless blobs like a _______or an earthworm. Our bones, which are connected by ________, provide a frame for the rest of the organs, giving us our unique body shape.

The skeletal system also helps us ________. Muscles, which are attached to bones by ________, cause the bones to move, which makes our bodies move.

Bones also help your body store ________such as calcium. If there is too much calcium in the blood, some of it becomes bone. If there is not enough calcium, then the bones give some to the blood.

Finally, another important function of bones is to produce _________. Inside bones there is a soft substance called ________, which is used to make blood cells.

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