The chapter explores the intricate process of blood distribution in the body during rest and exercise, focusing on vital organ allocation like the heart, brain, gut, kidneys, and muscles for optimal oxygen and nutrient delivery. It details the physiological responses during exercise, including sympathetic nervous system activation, vasoconstriction, and mechanisms that increase blood flow to muscles while maintaining overall circulation. The discussion also includes intrinsic and extrinsic control mechanisms of blood vessel smooth muscle, responses to oxygen levels, and the role of acetylcholine and nitric oxide in blood vessel relaxation.
What is the anatomy and physiology of the cardiovascular system? This episode explore the internal and external anatomy of the heart, blood flood through the heart and vessels, the conduction system of the heart and how ECGs (EKGs) can measure this, blood flow, cardiac output, and blood pressure!
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