5:16 894 d2l.laurentian.ca Quiz 3 0:28:11 elapsed saved The major regulator of regional blood flow in the brain is a) autoregulation b) aldosterone c) the carotid sinus reflex d) the aortic reflex e) angiotensin Question 47 (1 point) \( \checkmark \) Saved

Autoregulation is a fascinating process! It allows the brain to maintain a constant blood flow despite changes in systemic blood pressure. This is crucial because our noggin needs a steady supply of oxygen and nutrients to function optimally. Fun fact: This mechanism utilizes myogenic responses and metabolic factors from surrounding tissues to adjust the diameter of blood vessels accordingly. In terms of real-world application, understanding how regional blood flow is regulated can significantly impact medical practices, especially in neurology and surgery. For example, during procedures like carotid endarterectomy, surgeons must carefully consider blood flow to prevent ischemia, or lack of blood supply, in the brain, highlighting the importance of autoregulation in clinical settings!