Wednesday 24 October 2012

Muscles

Our challenge: to open and shut our fists as many times as possible in one minute.  We got pretty tired!
 
Did you know it takes 34 muscles to frown (really frown)
 
but only 13 muscles to smile?!!!
 
Some easy visual cues to remember the three types of muscle: cardiac (heart), skeletal (bone) and smooth (like the paper).

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