Warming a capillary bed to 42° C has which of the following effects?
I.It constricts the underlying blood vessels.
II.It increases blood flow well above tissue needs.
III.It "arterializes" the capillary blood.

Question

Quizplus · Accepted Answer

Warming a capillary bed to 42° C increases blood flow well above tissue needs (hyperemia) and "arterializes" the capillary blood, meaning it increases the oxygen content to more closely resemble arterial blood. It does not constrict the underlying blood vessels; instead, it dilates them, which is contrary to option I.

Warming a Capillary Bed to 42° C Has Which of the Following