What Causes the Rigor Mortis That Occurs in Skeletal Muscles

question 193

Multiple Choice

What causes the rigor mortis that occurs in skeletal muscles after death?

• A) Increase in available ATP, and decreased membrane permeability to calcium ions
• B) Decrease in available ATP, and increased membrane permeability to calcium ions
• C) Persistent stimulation by motor neuron
• D) Decrease in the number of muscle fibers
• E) Increase in membrane leakiness to sodium, resulting in continuing action potentials

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