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Muscles part 1 crash course

Terms in this set (13)

The amazing thing about your muscle tissue is that they turn chemical potential energy into mechanical energy simply by
Contracting and relaxing
You have ____ skeletal muscles
640
They work by _____ bones in different directions
Pulling
Each one is rigged up with its own personal ___ to stimulate contraction and its own ___ and vein to keep it well fed
Nerve, artery
A skeletal muscle is constructed like a sturdy piece of
Rope
Proteins like to change ___ when stuff binds to them
Shape
Changing shapes can allow proteins to ____ with other stuff
Bind or unbind
Them yogi told that form your muscle fibers are / into sections called
Sacromeres
Contain two different types of proteins called
Actin and myosin
When your muscle cells are at rest your actin and myosin cells ___ touch
Dont
When the action potential reaches the sarcomere it releases
Calcium
Allowing the myosin to bond to ___ and stretch out to connect with the actin
ADP
With its energy spent the myosin releases the ___ and detached from the actin
Stored energy
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