SLIDING FILAMENT THEORY
FILAMENT
THICK
myosin
THIN
troponin
tropomyosin
actin
PROCESS OF SLIDING FILAMENT THEORY
action potential generated, which stimulates muscle
Ca2+ released
Ca2+ binds to troponin, shifting the actin filaments, which exposes binding files
muscle contracts
Ca2+ removed which shifts actin filaments to original position, blocking binding sites
muscle contraction stops