Skeletal Muscle Structural Terms
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endomysium
connective tissue covering surrounding individual muscle fibers
epimysium
connective tissue covering surrounding the muscle
permysium
connective tissue surrounding a fascicle
T tubules
finger like invaginations of plasma membrane; extend into interior of fibers and surround myofibrils
sarcolemma
plasma membrane of skeletal muscle fiber
myofibrils
rod like structures within skeletal muscle fibers that contain thin and thick filaments organized into sarcomeres
sarcomeres
smallest contractile unit within individual muscle fibers
sarcoplasmic reticulum
stores calcium within muscle fiber
triad
two terminal cisternae and a t tubule
