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Defend Earth from alien invaders
connective tissue surrounding a fascicle
connective tissue ensheathing the entire muscle
contractile unit of muscle
thin connective tissue investing each muscle cell
plasma membrane of the muscle cell
a long, filamentous organelle found within muscle cells that has a banded appearance
actin- or myosin-containing structure
cord-like extension of connective tissue beyond the muscle, serving to attach it to the bone
a discrete bundle of muscle cells
cytoplasm within a muscle fiber
sheet of fibrous connective tissue that encloses a muscle
sheet of connective tissue by which certain muscles are attached to bone and fascia
two proteins associated with actin
sliding filament theory
when sarcomeres shorten, thick and thin filaments slide past each other, with think filaments moving toward the center of the sarcomere from both ends. H zones and I bands narrow, regions of overlap widen, and Z lines move closer together, shortening the sarcomere.
see book, pg. 294
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