Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← Human Body & HealthIf a hiker's core body temperature drops significantly in cold conditions, which consequence follows regarding thermoregulation?
A)Sweat gland activity increases rapidly
B)Shivering thermogenesis becomes predominant✓
C)Vasodilation reduces core heat loss
D)Hypothalamic set point temperature rises
💡 Explanation
Shivering thermogenesis becomes the primary mechanism because the hypothalamus detects the temperature drop and triggers involuntary muscle contractions to generate heat. Therefore, shivering is the dominant response, rather than sweating, vasodilation, or raising the set point, which are counterproductive in this situation.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Human Body & Health →- Which outcome is most likely in an individual with hypertension whose kidneys exhibit increased aldosterone production but normal angiotensin II levels?
- A patient with a thyroid tumor begins producing excessive T4. Which downstream effect is MOST likely to occur due to negative feedback?
- If a patient with a peanut allergy receives a blood transfusion from a donor who recently ate peanuts, which consequence follows due to passive sensitization?
- Which failure mode becomes prominent when chronic opioid use downregulates dopamine D2 receptors within the nucleus accumbens?
- Why does chronic sun exposure accelerate skin aging regarding elastin function?
- If a patient's liver loses the capacity for efficient urea cycle function, which consequence follows regarding blood composition?
