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a-band
region where myosin overlaps actin
16 cards·by ovo28
epimysium
surounds skeletal muscle and all fasicle in a muscle
perimysium
surounds indivdual fascicles
endomysium
surroun individual fibers
sarcolemma
cell membrane of muscle fiber
sarcoplasm
cytoplasm of a muscle fiber
myofibrili
threads of protein inside the sarcoplasm
myosin
thick protein filament insid a myofibrili
actin
thin protein filament inside a myofibril
i band
actin filaments attached to z-line
z line
protein to which actin binds
a band
region where myosin overlaps actin
motor neuron
nerve cellls that connects to muscle fiber
neuromuscler junction
connection between motor neuron and muscle fibers
sacomere
unit of muscle rom z line to z line
neurotransmitters
chemicals that o from neuron to muscle fibers
motor unit
consists of motor neuron and muscle fiber