Behavioral thermoregulation — Flashcards

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

Answer: increased

Flashcard 2: The posterior hypothalamus **controls** the _____ nervous system

Answer: sympathetic

Flashcard 3: Which type of sensory receptor senses pain and temperature? _____

Answer: Free nerve endings (C and Aδ fibers)

Flashcard 4: The anterior hypothalamus controls the _____ nervous system

Answer: parasympathetic

Flashcard 5: In heat stroke, the hypothalamic set point is _____

Answer: normal

Flashcard 6: Increased body temperature causes _____ sympathetic nervous system activity to the skin

Answer: decreased

Flashcard 7: 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 8: Hypothalamic center for heat dissipation (cooling)

Answer: Anterior hypothalamus (Preoptic area)

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

Flashcard 9: What is the effect of the cytokines released by activated macrophages?

Answer: fever, hypotension