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Muscle Vocabulary
16 cards·by Elizabethgracian
Epimysium
surrounds skeletal muscle and all fasicles in a muscle
Perimysium
Surrounds individual fasicles and seperate muscle
Endomysium
Surrounds individual muscle fibers
Sarcolemma
Cell membrane of a muscle fiber (cell)
Sarcoplasm
Cytoplasm of a muscle fiber (cell)
Myofibril
threads of protein inside sacroplasm
Actin
thin protein filament inside a mivofibrili
I band
actin filaments attached to the z line
Z line
protein to wich actin binds
A band
region where myosin overlaps actin
Sarcomere
unit of a muscle from z-line to z-line
Motor neuron
nerve cell that connects to muscle fibers
Neuromuscular junction
connection between motor neuron and muscle fiber
Neurotransmitters
chemicals that go from neuron to muscles
Motor unit
consists of motor neuron and muscle fibers
Myosin
thick protein filament inside a mivofbrili