Hypothermia — Flashcards

Flashcard 1: Once the body temperature has fallen below about _____, the ability of the hypothalamus to regulate temperature is lost.

Answer: 85F (30C)

Flashcard 2: BMR of the body is _____ in cold environment

Answer: increased

Flashcard 3: Reason for paradoxical undressing is _____-induced paralysis of the vasomotor nerves, leading to vasodilation.

Answer: cold

Flashcard 4: heat stroke occurs due to _____

Answer: failure of heat regulation

Extra: 

Flashcard 5: heat syncope occurs due to _____

Answer: vasodilation

Extra: 

Flashcard 6: heat exhaustion occurs due to _____

Answer: impaired salt and water balance in the body

Extra: 

Flashcard 7: Pyrogens induce fever via increased production of _____, which acts on the anterior hypothalamus to increase local production of prostaglandins

Answer: IL-1

Flashcard 8: Exposure to cold temperatures activates centers in the _____ hypothalamus, which then activate α and γ motoneurons innervating skeletal muscle, causing shivering

Answer: posterior

Flashcard 9: Heat _____ occurs because of vasodilation and volume depletion(from sweating) following exercise or prolonged standing

Answer: syncope