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muscle vocabulary
16 cards·by meli17
what is Epimysium?
surrounds skeletal muscle & all fasciles in a muscle
what is Perimysium?
surrounds individual fasciles & separtes muscle into small compartments
what is Endomysium?
surround individual muscle fibers
what is Sarcolemma?
cell membrane of a muscle(cell)
what is Sarcoplasm?
cytoplasm of a muscle fiber(cell)
what is Myofibril?
threads of protein inside the sarcoplasm
what is Myosin?
THICK protein filament inside a myofibril
what is Actin?
THIN protein filament inside a myofibril
what is I band?
actin filaments attached to z-lines
what is Z lines?
protein to which actin binds
what is A band?
region where myosin overlaps actin
what is Sarcomere?
unit of muscle from z-line to z-line
what is Motor neuron?
neerve cell that connects to muscle fiber
what is Neuromuscular junction?
connection between motor neuron fiber
what is Neurotransmitters?
chemicals that go from neuron to muscle fiber
what is Motor unit?
consists of motor neuron & a muscle fiber