20.6a Higher Brain Centers
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9 Terms
What are higher brain centers in blood pressure regulation?
The hypothalamus and limbic system.
What role does the hypothalamus play in blood pressure regulation?
It can increase cardiac output and resistance.
How does the hypothalamus increase blood pressure?
By increasing cardiac output and peripheral resistance.
What situations activate the hypothalamus to increase blood pressure?
Increased body temperature and fight-or-flight response.
What is the fight-or-flight response?
A stress response that prepares the body for action.
How does increased body temperature affect blood pressure via the hypothalamus?
It can increase blood flow demands and raise blood pressure.
What role does the limbic system play in blood pressure regulation?
It alters blood pressure in response to emotions and memories.
How can emotions affect blood pressure?
They can increase or decrease it through neural pathways.
Why are higher brain centers important in blood pressure regulation?
They allow emotional and environmental factors to influence circulation.
