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Transcript of Muscular System
They are volountary
The main job of skeletal muscles are to make bones move
Muscles contract when they recieve messages from the nervous system
They work in pairs and while one muscle contracts the other returns to its original length
Tendons are what connect the muscle to the bone
Ligaments are what hold the bones together Structure & Function
Contracted Muscle Relaxed muscle Skeletal Muscles Tendons Ligaments Steroids Steroids are mainly used to make muscles grow
Steroids are anabolic
These means that they make a simple substance turn into a more complex one
Steroids do have positive effects if they are used carefully
Elevated blood pressure is one of the health effects the abuse of steroids have
Abuse of steroids can lead to violent behavior and suicide Negative Effects Pills Injections Facial Muscles Your face has 98 muscles in total
When you smile you use 12 muscles
When you frown you use 24
The name of the mucle that surouds your eyes is called the obicularis ocul
The one that surounds your mouth is obicularis oris All facial Muscles Obicularis Oculi Obicularis Oris The End Sourses Pictures http://www.yorku.ca/earmstro/journey/images/facial.gif