Multiple choice

What is the primary function of sacroplasmic reticulum?

  1. Store calcium ions

  2. Synaptic transmission

  3. Forms myelin sheath

  4. Regeneration of nerves

  5. Acts as scavenger cells
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A Correct answer
Explanation

The sarcoplasm is the specialized cytoplasm of a muscle cell that contains the usual subcellular elements along with the golgi apparatus, abundant myofibrils, a modified endoplasmic reticulum known as the sarcoplasmic reticulum (SR), myoglobin and mitochondria. The SR forms a network around the myofibrils, storing and providing the Ca2+ that is required for muscle contraction.

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