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← Nature & AnimalsWhich signal transduction cascade stimulates shivering thermogenesis, thereby allowing muscles to generate heat?
A)Calcium ion release from sarcoplasmic reticulum✓
B)Increased insulin secretion for glucose uptake
C)Potassium efflux hyperpolarizing muscle fibers
D)Sodium influx causing action potentials blockade
💡 Explanation
Shivering thermogenesis occurs via calcium ion release because this release activates myofibril contraction, thereby converting chemical energy into heat through uncoordinated muscle activity and increasing body temperatures, rather than glucose uptake involving insulin signaling pathways.
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