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(New page: <big><center>'''BACK TO MAIN PAGE'''</center></big> *Sarcolemma: cell membrane of the muscle fiber, containing a plasma membrane and an outer coat of polysaccharide conaini...) |
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*Sarcolemma: cell membrane of the muscle fiber, containing a plasma membrane and an outer coat of polysaccharide conaining collagen fibrils; fuses with tendon fiber at the end of the muscle fiber | *Sarcolemma: cell membrane of the muscle fiber, containing a plasma membrane and an outer coat of polysaccharide conaining collagen fibrils; fuses with tendon fiber at the end of the muscle fiber | ||
*Z disc: passes in the transverse plane across the myofibril to attach successive myofibrils together, enabling muscle cells to act as a syncitium and giving skeletal muscle its classic striated appearance | *Z disc: passes in the transverse plane across the myofibril to attach successive myofibrils together, enabling muscle cells to act as a syncitium and giving skeletal muscle its classic striated appearance | ||
Revision as of 20:35, 18 August 2008
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- Sarcolemma: cell membrane of the muscle fiber, containing a plasma membrane and an outer coat of polysaccharide conaining collagen fibrils; fuses with tendon fiber at the end of the muscle fiber
- Z disc: passes in the transverse plane across the myofibril to attach successive myofibrils together, enabling muscle cells to act as a syncitium and giving skeletal muscle its classic striated appearance
- Sarcomere: the portion of the myofibril that lies between two successive Z discs
- Sarcoplasm: fills spaces between myofibrils, containing potassium, magnesium, and phosphate
- Sarcoplasmic Reticulum: specialy organized reticula to control muscle contraction, site of calcium ion storage