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Name the 2 short-term regulations of Blood Pressure ?
- 1.Neural Mechanism
- 2.Humoral Mechanism
Which nerve sends impulses to heart through the parasympathetic system ?
The Vagus Nerve in cardiovascular center
How does the sympathetic transmit impulses to the heart ?
Through the spinal cord and peripheral sympathetic nerves
Intrinsic Circulatory Reflexes
- -ANS controlled
- -Includes baroreceptors and chemoreceptors
- -Used for rapid and short term blood pressure control
Extrinsic Circulatory Reflexes
- -Found outside the circulation
- -Mediate response such a pain and cold
What are the two main mechanism the Humoral mechanism relies on ?
- 1. Renin-Angiotensin-Aldosterone system
How does the Renin-Angiotesin-Aldosterone system increase blood pressure ?
- -Decrease in ECM + Arterial Blood Pressure
- - Renin is released from the Juxtaglomerular cells
- -Travels in blood and converts into Angiotensin
- -Converts into Angiotensin I
- - enters lungs and catalyzed by Angiotensin-Converting Enzyme
- -Converts in Angiotensin II
How does Vasopressin regulate BP ?
- -Decrease Blood volume + Blood Pressure
- -Release from Posterior Pituitary gland
- -Direct vasoconstrictor effect
- -Increases water retention
What does Hypertension represent ?
An elevation in systolic and /or diastolic blood pressure
True or False
Men are at greater risk of Hypertension then women.
What is primary hypertension ?
Chronic elevation of BP occurs w/o evidence of other disease condition .
Name 3 risk Factors for Primary HP
- Family History
- High salt intake
- Excessive Water intake
What is secondary hypertension ?
Elevation of BP results from some other disorder.
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