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flashcards
science
22 cards·by brittneyc
epimysium
surrounds skeleton muscle and all fuscicles in a muscle
Perimysium
surrounds individual fascicles and seperates muscle into small compartments
Endomysium
surrounds individual muscle fibers
Sarcoplasm
Cell membrane of a muscle fiber (cell)
Saracoplasm
Cytoplasm of a muscle fiber (cell)
Myofibril
Threads of protein inside the sarcoplasm
Myosin
thick protein filament inside a mayofibril
Actin
Thin protein inside a myofibril
l band
actin filaments attached to z-lines
z line
Protein to which actin binds
A band
Region where myosin overlaps actin
Sarcomere
Unit of muscle from z-line to z-line
Motor neuron
Nerve cell that connects to muscle fiber
Neuronmuscular junction
Connective between motor nueron and muscle fiber
Neurotransmitters
Chemicals that go form neuron to muscle fibers
sarcoplasm
cytoplasm of muscle cell
Motor unit
consists of motor neuron to muscle fibers
Neurontransmitters
chemicals that go form neuron to muscle fibers
neuronmuscular junction
connective between motor neuron and muscle fiber
Motor Neuron
nerve cell that connects to muscle fiber
sarcomere
unit of muscle from z-line to z-line
A band
region where myosin overlaps actin