The human body has more than 600 different muscles. Most of these are called skeletal muscles, because they are attached to the skeleton. These muscles perform a variety of functions related to movement, such as allowing us to walk and expressing emotion in our faces. In total, the skeletal muscles make up almost half of our body mass.
The Motor Functions of the Nervous... Biology, Health
Muscle Tissues Biology, Health
The Skeleton Biology, Health
Body Tissues Biology, Health
The Body's Building Blocks Biology, Health
© National Geographic Society 2009
• Terms of Service
• Privacy Policy
Site by Logicbox
& Idea Junction
