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muscle structures
16 cards·by jackieenriquez
what is epimysium
surrounds skeletal muscle and all fasicles in a muscle
what does perimysium do
surounds individual fasicles and sepertaes muscles in small compartments
what does endomysium do
surrounds individual muscle fibers
what is sarcolemma
cell membrane of a muscle fiber
what is sarcoplasm
cytoplasma of muscle fiber
what is myofibril
threads of protien inside the sarcoplasm
what is myosin
thick protien filament inside a myofibril
what is actin
thin protien filament inside a myfibril
what is an i band
actin filaments attached to z lines
whats a z line
protien to which actin binds
what is an A Band
region where myosin overlaps actin
what is sarcomere
unit of muscle from z line to z line
what is a motor neuron
nerve cell that connects to muscle fiber
what is a neuromuscular junction
connection between motor neuron and muscle fiber
what are neurotransmitters
chemicals that go from neuron to muscle fiber
what is a motor unit
consists of motor neuron and a muscle fiber