When a capillary bed decreases in blood flow due to locally high oxygen levels, it is caused by

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Quizplus · Accepted Answer

Autoregulation is the ability of tissues to regulate their own blood flow in response to changes in metabolic demand. In this case, the locally high oxygen levels indicate that the tissue's metabolic demand has been met, so autoregulation reduces blood flow to avoid excessive oxygen delivery. Intercellular chemicals, angiotensin, neural mechanisms, and endocrine mechanisms do not play a significant role in this specific scenario.

When a Capillary Bed Decreases in Blood Flow Due to Locally