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Nature & Animals

Which outcome occurs when mammalian muscle sympathetic nerve activity is inhibited due to exposure in cold conditions?

A)Reduced efficiency of shivering thermogenesis
B)Increase in brown adipose tissue activity
C)Increase in mean arterial pressure
D)Enhancement of non-shivering thermogenesis

💡 Explanation

If the muscle sympathetic nerve is not active, shivering declines because it affects skeletal muscle contraction decreasing ATP generation, resulting in reduced efficiency of shivering thermogenesis regulated via muscle activity. Therefore reducing shivering efficiency; rather than increasing heat from other mechanisms.

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