excitation of skeletal muscle fibers

step 1 of excitation of skeletal muscle

somatic motor neurons produce and conduct action potential

step 2 of excitation of skeletal muscle

Acetylcholine is released at the neuromuscular junction

step 3 of excitation of skeletal muscle

Acetylcholine binds to receptors at the motor end plate of the neuromuscular junction

step 4 of excitation of skeletal muscle

acetylcholine receptors open and positively charged ion diffuse in

step 5 of excitation of skeletal muscle

action potential spreads

step 6 of excitation of skeletal muscle

sodium ions diffuse in

step 7 of excitation of skeletal muscle

voltage gated sodium channels are triggered to open

step 8 of excitation of skeletal muscle

sarcolemma depolarizes - end-plate potential