1
structure in muscle cells that release calcium ions
2
molecule that donates phosphate to ADP when ATP is needed for muscle contraction
3
bond formed when myosin head binds to myosin binding site
4
smallest contractile unit of the muscle cell
5
Ion that binds to the tropmyosin
6
Thick Filament
7
Thin Filament
8
region of sarcomere made of thick filaments
9
molecule released by Myosin head that causes it to change shape and pull actin
