Age-related changes in thermoregulation — Flashcards

Flashcard 1: Exposure to cold temperatures causes _____ sympathetic nervous system activity

Answer: increased

Flashcard 2: Exposure to cold temperatures causes increased activation of _____ hormone

Answer: thyroid

Flashcard 3: Sleep in the elderly is associated with _____ REM sleep

Answer: decreased

Flashcard 4: Patients develop heat stroke due to heat production exceeding _____

Answer: heat dissipation

Flashcard 5: Increased body temperature causes _____ sympathetic nervous system activity to the skin

Answer: decreased

Flashcard 6: Hypothalamic center responsible for thermoregulation against HEATING:

Answer: Anterior hypothalamus (Preoptic area) :: center for cooling?

Extra: The anterior hypothalamus/preoptic area (AH/POA) handles heat dissipation (cooling), while the posterior hypothalamus handles heat conservation (heating). Remember: A/C = Anterior Cooling.

Flashcard 7: Hypothalamic center for heat dissipation (cooling)

Answer: Anterior hypothalamus (Preoptic area)

Extra: Mnemonic: Anterior = Cooling (A/C) Posterior = Heating (P/H)

Flashcard 8: What is the effect of the cytokines released by activated macrophages?

Answer: fever, hypotension