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Muscle Structures
Vocab used to describe certain structures in Muscles
16 cards·by taylorbryan
Epimysium
Surrounds skeletal muscle and fasciles in a muscle
Perimysium
Surronds individual fasciles and seperates muscle into small compartments
Endomysium
Surronds individual muscle fibers
Sarcolemma
Cell membrane of a muscle fiber (cell)
Sacroplasm
Cytoplasm of a muscle fiber (cell)
Myofibril
Threads of protein imsode the sacroplasm
Myosin
Thick Protein inside a myofibril
Actin
Thin protein filament inside a myrofibril
I band
Actin filaments attached to z-lines
Z line
Protein to which actin binds
A band
Region where myosin overlaps actin
Sacromere
unit of muscle from z-line to z-line
Motor Neuron
Nerve cell that connects to muscle fiber
Neuromusclar Junction
Connection between motor neuron and muscle fiber.
Neurotransmitters
Chemicals that go from neuron to muscle fibers
Motor Unit
consists of motor neuron and muscle fiber