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muscular system
stuctures that make up the muscular system
16 cards·by Chelsea Brown
epimysium
surronds skeletal muscle and all fascicles in a muscle
perimysium
surronds indivdual fascicles and seperates muscles into small compartments
endomysium
suronds individual muscle fibers
sacolemma
cell membranes of a muscle fiber
sarcoplasm
cytoplasm of a muscle fiber
myofibril
threads of protein inside the sarcoplasm
myosin
thick protein filament inside the myofibril
Actin
Thin protin filament inside a myofibril
I band
Actin filament attache o Z-lines
Z-line
Protien to which actin binds
A-band
region where myosin overlaps actin
Sacomere
unit of muscle from Z-line to Z-line
Motor neuron
nerve cell that connects to muscle fibe
neuromuscular junction
connection between moto neuron and muscle fiber
Neurotransmitters
cemicals at go from nuetron to muscle fiber
Motor Unit
consist of motor nuerton and muscle fiber