Thermoregulation: practice question

The best answer is C, Sweating and cutaneous vasodilation. Heat loss increases through sweat evaporation and cutaneous vasodilation when core temperature rises, under hypothalamic thermoregulatory control.

Vasoconstriction conserves heat.

Shivering generates heat during cold exposure.

Piloerection has minimal heat-conserving effect in humans.

It tests Thermoregulation in Physiology. The correct option holds because: Correct: sweating and vasodilation increase heat loss.

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

For each system, sketch the key graph (pressure–volume loop, oxygen dissociation curve, nephron handling) and explain it aloud. Then use the flashcards and the other Physiology questions on this site to test what stuck.

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.