Categories: All - muscle - contraction

by Nazrin Nazriq 4 years ago

631

SLIDING FILAMENT THEORY

The sliding filament theory explains the mechanism of muscle contraction at the cellular level. It starts with an action potential that stimulates the muscle, leading to the release of calcium ions (

SLIDING FILAMENT THEORY

SLIDING FILAMENT THEORY

PROCESS OF SLIDING FILAMENT THEORY

muscle contraction stops
Ca2+ removed which shifts actin filaments to original position, blocking binding sites
muscle contracts
Ca2+ binds to troponin, shifting the actin filaments, which exposes binding files
Ca2+ released
action potential generated, which stimulates muscle

FILAMENT

THIN
actin
tropomyosin
troponin
THICK
myosin

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