How many bones do humans have in our bodies?
206
Are our bones alive?
Yes
Skeletal muscles work in pairs. When one contracts, the other
relaxes
In our body we can find different kinds of muscles. ___________ muscles, ____________muscles and __________muscles.
Skeletal, cardiac and smooth
Our faces have___ muscles.
43
Our muscular system is made up of over ______________ muscles
600
What is the main function of the following bones?
skull and ribs
Protection
What do skeletal muscles produce when moving?
Heat
Some joints move and others are ____
fixed
