3 Questions
Which structure is responsible for concentrating and sequestering Ca2+ in skeletal muscle fibers?
Sarcoplasmic reticulum (SR)
What are the end regions of the sarcoplasmic reticulum (SR) called?
Terminal cisternae
What allows action potentials to move rapidly from the cell surface into the interior of the muscle fiber?
Transverse tubule (t-tubule)
Test your knowledge on the Sarcoplasmic Reticulum & Transverse Tubule System in skeletal muscle fibers. Learn about the structure and functions of the SR and t-tubules, and their role in calcium regulation.
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