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HESI: MUSCULAR

TermDefinition
support body posture & create heat Muscular Sys
skeletal muscle cells muscle fibers
The plasma membrane of a muscle fiber Sarcolemma
Cytoplasm of the muscle fiber Sarcoplasm
Long protein bundles that occupy the main portion of sarcoplasm Myofibrils
Difference between myofibers and myofibrils Myofibers are the muscle cells itself. Myofibrils are long protein cords in the sarcoplasm
Red pigment that stores oxygen until needed for muscular activity Myoglobin
Serves as a reservoir of calcium ions Sarcoplasmic Reticulum (SR)
bundles of muscle fibers Fasicles
Created by: msxmas
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