It is comparable to the cytoplasm of other cells, but it contains unusually large amounts of glycogen (a polymer of glucose), myoglobin, a red-colored protein necessary for binding oxygen molecules that diffuse into muscle fibers, and mitochondria.[1][2][3]
The sarcoplasm plays a critical role in muscle contraction as an increase in Ca2+ concentration in the sarcoplasm begins the process of filament sliding. A decrease in Ca2+ in the sarcoplasm subsequently ceases filament sliding.[4] The sarcoplasm also aids in pH and ion balance within muscle cells.[3]
- ^ Douplik, A (2013). The response of tissue to laser light. Woodhead Publishing. pp. 47–109. ISBN 9780857092373.
- ^ Toumanidou, Themis (2018). Chapter 9 - Spinal Muscles. Academic Press. pp. 141–166. ISBN 9780128128510.
- ^ a b Roberts, Michael D.; Haun, Cody T.; Vann, Christopher G.; Osburn, Shelby C.; Young, Kaelin C. (2020). "Sarcoplasmic Hypertrophy in Skeletal Muscle: A Scientific "Unicorn" or Resistance Training Adaptation?". Frontiers in Physiology. 11. doi:10.3389/fphys.2020.00816. ISSN 1664-042X. PMC 7372125. PMID 32760293.
{{cite journal}}: CS1 maint: PMC format (link) CS1 maint: unflagged free DOI (link) - ^ Shahinpoor, Mohsen (2013). Muscular Biomimicry. Elsevier. pp. 139–160. ISBN 9780124159952.