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Identify the underlying cause of shivering during cold winter weather.
It is a result of voluntary action in striated muscles.
It is a result of voluntary action in smooth muscles.
It is an involuntary action in striated muscles.
It is an involuntary action in smooth muscles.
Answers (1)
Shivering is a physiological response to cold temperatures aimed at generating heat and maintaining body temperature. It involves rapid and rhythmic contractions of muscles, primarily the skeletal muscles, which are striated muscles under voluntary control. However, during shivering, the contractions occur involuntarily as a reflex response triggered by the body's thermoregulatory system. The rapid contractions of striated muscles during shivering generate heat through muscle activity, increasing the body's internal temperature. This helps counteract the heat loss experienced in cold conditions and assists in maintaining core body temperature within a normal range. Therefore, option 3 is the correct answer.
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