Nonshivering thermogenesis is accomplished by
A)involuntary contraction of skeletal muscles.
B)constriction of the dermal blood vessels.
C)metabolism associated with brown fat.
D)involuntary contraction of the arrector pili muscles.

Question

Quizplus · Accepted Answer

Nonshivering thermogenesis is the generation of heat without muscle activity, and it is mainly accomplished by the metabolism of brown fat, which produces heat by uncoupling oxidative phosphorylation. The other options (A, B, and D) involve muscle activity, but nonshivering thermogenesis specifically refers to heat generation without shivering or muscle contractions.

Nonshivering Thermogenesis Is Accomplished by