Hairy skin is innervated by [blank_start]__________[blank_end] nerves; whereas non-hairy skin is innervated by [blank_start]__________[blank_end].
Respuesta
Both
Vasoconstrictor
Vasodilator
Pregunta 2
Pregunta
Heat-induced increases in blood flow are due to [blank_start]__________[blank_end] of skin arterioles and [blank_start]__________[blank_end] of arteriovenous anastomoses.
Respuesta
Vasodilation
Vasoconstriction
Opening up
Closing down
Pregunta 3
Pregunta
[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).
Respuesta
Acetylcholine
Epinephrine (/Adrenaline)
Norepinephrine (/Noradrenaline)
Bradykinin
Thyroxine
Pregunta 4
Pregunta
During extreme heat, skin blood flow can [blank_start]__________[blank_end] from [blank_start]__________[blank_end] to [blank_start]__________[blank_end].
Respuesta
Increase
Decrease
~300 mL/min
~800 mL/min
~3 L/min
~8 L/min
Pregunta 5
Pregunta
What impact does dehydration have on the effectiveness of evaporative heat loss?
Respuesta
It reduces it
It greatens it
Pregunta 6
Pregunta
During exercise, what happens to the Mean Skin Temperature?
Respuesta
Not much
It drops
It rises
Pregunta 7
Pregunta
In 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];