Quiz
PHSI3011 06-2 Thermoregulation
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Perguntas do quiz (7)
1Hairy skin is innervated by [blank_start]__________[blank_end] nerves; whereas non-hairy skin is innervated by [blank_start]__________[blank_end].
- ABoth
- BVasoconstrictor
- CVasodilator
2Heat-induced increases in blood flow are due to [blank_start]__________[blank_end] of skin arterioles and [blank_start]__________[blank_end] of arteriovenous anastomoses.
- AVasodilation
- BVasoconstriction
- COpening up
- DClosing down
3[blank_start]__________[blank_end] is the (a?) neurotransmitter for vasodilator nerves, but nitric oxide mediates its vasodilator action. Cholinergic nerves that induce sweating may be the same ones that induce vasodilation. [blank_start]__________[blank_end] in sweat may also contribute to the vasodilation (via nitric oxide).
- AAcetylcholine
- BEpinephrine (/Adrenaline)
- CNorepinephrine (/Noradrenaline)
- DBradykinin
- EThyroxine
4During extreme heat, skin blood flow can [blank_start]__________[blank_end] from [blank_start]__________[blank_end] to [blank_start]__________[blank_end].
- AIncrease
- BDecrease
- C~300 mL/min
- D~800 mL/min
- E~3 L/min
- F~8 L/min
5What impact does dehydration have on the effectiveness of evaporative heat loss?
- AIt reduces it
- BIt greatens it
6During exercise, what happens to the Mean Skin Temperature?
- ANot much
- BIt drops
- CIt rises
7In response to increased “cold” receptor activity, the Autonomic and Somatomotor pathways both try to prevent hypothermia (/hypochondria?). How?
Autonomic response → [blank_start]__________[blank_end];
Somatomotor response → [blank_start]__________[blank_end];- A↑ Heat conservation
- B↓ Heat conservation
- C↑ Heat production
- D↓ Heat production
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- PHSI3011 06-2 Thermoregulation
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- Criado em 10 nov 2017 · atualizado em 10 nov 2017
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