Correct order of stages of muscle contraction isAStimuli Neurotransmitter secretion → Release of calcium → Cross-bridges formation → Excitation of T-system → Sliding of actin filamentBStimuli Neurotransmitter secretion → Excitation of T-system → Release of Ca2+ → Cross-bridges formation → Sliding of actin filaments → H band diminishesCStimuli Excitation of T-system → Neurotransmitter secretion → Crossbridges formation → Sliding of actin filaments → H band diminishesDStimuli → Neurotransmitter secretion → Cross-bridges formation → Excitation of T-system → Sliding of actin filaments
Correct order of stages of muscle contraction is
A
Stimuli Neurotransmitter secretion → Release of calcium → Cross-bridges formation → Excitation of T-system → Sliding of actin filament
B
Stimuli Neurotransmitter secretion → Excitation of T-system → Release of Ca2+ → Cross-bridges formation → Sliding of actin filaments → H band diminishes
C
Stimuli Excitation of T-system → Neurotransmitter secretion → Crossbridges formation → Sliding of actin filaments → H band diminishes
D
Stimuli → Neurotransmitter secretion → Cross-bridges formation → Excitation of T-system → Sliding of actin filaments