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Regulating BF

Central Mechanisms

QuestionAnswer
What is the function of the CVC and where is it located? exerts Autonomic control over the Heart/Aterioles - Medulla
How does the CVC exert Aunomic control? Inhibitory, Excitatory input from Peripheral Receptors
What is the function of Pressreceptors/Baroreceptors? INHIBIT the CVC - sensitive to HIGH BP --> DECREASE BF
Where are Pressreceptors/Baroreceptors located? Aortic Arch, Carotid bodies
name 2 Excitatory Peripheral Receptors. Chemoreceptors, Mechanoreceptors
What is the function of Chemoreceptors? EXCITE the CVC - sensitive to LOW O2 in the blood --> INCREASE BP
What is the function of Mechanoreceptors? EXCITE the CVC - sensitive to Movement --> INCREASE BP
Where are Mechanoreceptors located? Joints, Skeletal Muscles
What would be the Inhibitory input response to decreased Sympathetic? Vasodilation (alpha-adrenergeric) --> decrease PR --> decrease MAP = decrease BF
What would be the Inhibitory input response to increased Parasympathetic? decrease HR --> decrease MAP = decrease BF
What would be the Excitatory input response to increased Sympathetic? Vasoconstriction (alpha-adrenergic) some Vasodilation (ß2-adrenergic) --> increase PR --> increase MAP = increase BF
What would be the Excitatory input response to decreased Parasympathetic? increase HR --> increase MAP = increase BF
Created by: Kristel