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6 Cards in this Set
- Front
- Back
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What components determine cardiovascular responses? |
The balance between the sympathetic & parasympathetic components of the autonomic nervous system. |
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What are baroreceptors? |
Mechanoreceptors that detect changes in pressure. |
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What is the baroreceptor reflex? |
The reflexes by which blood pressure is maintained; collectively known as the baroreflex. |
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What are two types of baroreceptors? |
Arterial baroreceptors & cardiopulmonary baroreceptors |
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What is the role of sympathetic activation in the baroreceptor reflex?
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It leads to increased cardiac contractility, increased HR, venoconstriction, and arterial vasoconstriction - ultimately leads to increased BP via elevation of total peripheral resistance & cardiac output (CO). |
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What is the role of parasympathetic activation in the baroreceptor reflex? |
Leads to a decrease in the HR & a small decrease in contractility, resulting in a decrease in BP. |
