You know your body movement coming from muscles
You know that muscles control
All the things you do
Your body has got six-forty
Skeletal muscles in fact
Attached to the skeleton with tendons
When it contracts pulls the bone
But it can't come pushing back
So you need another back to position
*Muscle tissue it makes you stronger
Stand a little taller
Tendons will attach them right to the bone
Voluntary will give you movement
Footsteps on the pavement
Involuntary work all alone
**When muscles work they will get shorter, shorter
Contract get small and tight
But they cannot go back get longer
Need a muscles partner
They will work in pairs never alone
You heard that cardiac muscles do make up your heart I'll tell you that they're involuntary, never tire, no no
The upper set it will contract
Lower part blood filling
Lower squeezes blood to arteries
(ซ้ำ *,**)
Thanks to visceral organs in bodies
Contract slowly rhythmically, not tired
Thanks to them it moves the food inside me
You know muscles contract and move food through your digestive system
Squeeze intestines
(ซ้ำ *,**,**)
Never alone