Exercise and thermoregulation — Flashcards

Flashcard 1: The _____ hypothalamus senses decreased body temperatures and mediates responses to conserve heat

Answer: posterior

Flashcard 2: Overall, the effect of cortisol is _____ (anabolic, catabolic)

Answer: catabolic

Flashcard 3: In response to exercise, there is _____ venous O2 content

Answer: decreased

Flashcard 4: How does Paco2 change in response to exercise?_____

Answer: No change

Flashcard 5: How does plasma protein concentration change with sweating in a desert? _____

Answer: Increased

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