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Cellular level of Muscle
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What is the Sarcolemma?
plasma membrane of muscle cells
What is the Sarcoplasm?
cytoplasm of a muscle fiber
_______ nuclei are next to the sarcolemma
multiple
Mitochondria are in _____ throughout the muscle fiber.
rows
What extends lengthwise within the muscle fiber
Myofibrils (thread like structures)
Myofibrils have light and dark bands called?
cross-striations
Myofibrils are the _______ _______ of the skeletal muscle
contractile elements
Thin Filaments are the main component of
actin
Thick Filaments are the main component of
myosin
Elastic filaments are composed of the protein ____
titin which is also called connectin
Sarcomeres are:
compartments that extend from one Z disc to the next.
Describe the Z-Disc and what color is its band?
its in the middle of the light band
Sarcoplasmic Reticulum:
Author
ssiemann
ID
244627
Card Set
Cellular level of Muscle
Description
anatomy and physiology behind muscles
Updated
2013-11-03T04:24:30Z
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